Bitget Research: BONK Market Cap Reaches New High, SOLS Sees Over 500% Increase in 24 Hours

In the past 24 hours, many new popular tokens and topics have emerged in the market, and perhaps they will be the next focus of the market.

In Summary:

1.Popular Tokens:

SATS (BRC-20 Token) - Binance has listed SATS, reigniting the hype for BRC-20 tokens. Today, SATS has seen an increase of over 48%, with over 5x increase in trading volume. The 24-hour trading volume surpassed US$170 million. This surge also stimulated a sharp rise in other BRC-20 tokens like ORDI and RATS.

ChangeNow (DApp) - This is a non-custodial cryptocurrency and fiat exchange where users can trade over 200 tokens with no registration or trading limits. The project integrates DeFi and CeFi, with an average exchange time of 5 minutes, and has a very active on-chain trading volume.

BTCMEME (Token) - BTCMEME has an on-chain liquidity of US$1.40 million (60% locked for 6 months, the remaining 40% LP available for withdrawal at any time in 7 EOA wallets), with a 24-hour on-chain trading volume of US$1.81 million and 877 transactions in the same period. The token has seen a continuous significant increase for 5 days following its TGE. It has 11.5K followers on Twitter, with regular tweets receiving between 2000 and 8000 views.

MUBI (Token) - MUBI is the native protocol token of the Multibit, a BRC20-ERC20 cross-chain bridge project. With the growing popularity of the BRC-20 ecosystem, the hype has also spread to Ethereum. Multibit enables users to cross-chain BRC-20 tokens from the Bitcoin Network to the Ethereum Network to engage in the corresponding DeFi ecosystem. This distinctive functionality has garnered considerable market attention and speculation.

LINK (Token) - Recently, there has been significant on-chain activity among LINK whales. A whale address starting with 0x54f withdrew 218,049 LINK tokens (approximately US$3.23 million) from Coinbase. Additionally, there is a whale address that sold LINK at a loss to repay debts on Aave. It is reported that this whale address purchased 237,054 LINK tokens (approximately US$3.55 million) between November 10 and December 2 at US$14.96 each, and then sold 165,083 LINK tokens (approximately US$2.33 million) in the past 4 hours at US$14.15 each. The address still holds 71,979 LINK tokens (approximately US$1.02 million), resulting in a total loss of approximately US$190,000.

MAGIC (Token) - Treasure is a decentralized NFT ecosystem on Arbitrum, and $MAGIC is the native governance and utility token of this ecosystem. Both Treasure’s metaverse and NFT projects, as well as community projects and metaverses, use $MAGIC as the default medium of exchange. For example, Treasure has established a native NFT marketplace, enabling users to trade NFT assets from the ecosystem in one place, with $MAGIC serving as the payment method for these NFTs. The price briefly surged past US$1, leading to increased trading activity.

2.Popular NFTs:

Bitcoin Frogs (NFT) - This project is a popular Ordinals NFT series. Yesterday, with the pullback in the BRC-20 tokens, the price of these NFTs was also hyped, resulting in notably active trading volumes.

3.Popular DApps:

ChangeNow (DApp) - This is a non-custodial cryptocurrency and fiat exchange where users can trade over 200 tokens with no registration or trading limits. The project integrates DeFi and CeFi, with an average exchange time of 5 minutes, and has a very active on-chain trading volume.

OpenSea Seaport (DApp) - Recently, OpenSea reduced its staff by approximately 50% and plans to reposition its team around OpenSea 2.0. The New York hedge fund Coatue has cut the value of its OpenSea shares by 90% to US$13 million, which may suggest that the current valuation of OpenSea is only US$1.4 billion.

Port3_aggregator (DApp) - Port3 is a blockchain project designed to become a Web3 social data gateway. It provides open data services by aggregating Web2 and Web3 data. Port3 is structured around three fundamental modules: data collection, data reading, and data application. These modules are integral in aggregating various types of information, including community dynamics, social media trends, and on-chain transaction data. It aggregates data through DAO tools and displays the results on its SoGraph.xyz page, including community trends and market movements. The Port3 protocol forms the basis of its open and collaborative data layer, allowing data providers to control their data, earn rewards for providing data, and protect their privacy. Port3 facilitates the rapid migration of Web2 users and data to Web3 and is committed to achieving secure and efficient social data aggregation.

MERKLY (DApp) - Merkly is a multifunctional Omnichain platform, aiming to simplify bridging through the groundbreaking technology of LayerZero (LZ). The purpose of the refuel contract is to provide gas fees for chains without gas by using a swap and cross-chain method.

XPET (DApp) - The XPET mobile version has been launched today. XPET is a SocialFi project on the Arbitrum chain, with gameplay similar to Fren Pet, requiring players to feed, accompany, and ensure the survival of their pets, thereby helping them earn token rewards. Unlike Fren Pet's "main screen" gameplay, xPET operates through a browser plugin, enabling greater interaction possibilities with Twitter.

MUX Protocol (DApp) - MUX has set a new 7-day trading volume record, with this week's trading volume reaching US$1.52 billion. MUX Protocol is a decentralized perpetual aggregator that can automatically select the best liquidity path, reducing trading costs while meeting the demands for opening positions.

RAI Finance (DApp) - A DeFi project with relatively high activity on the Base chain. The protocol currently has a TVL of US$1,214,127, a trading volume of US$2,348,846, and 74,802 users. The platform offers token exchanges, NFT trading, and sociaL trading. Users can create portfolios or effortlessly follow others' portfolios.

Fren Pet (DApp) - A new NFT project on the Base chain. Fren Pet is a cross-chain pet simulation game inspired by Friend.tech and developed jointly by Adam (@surfcoderepeat) and Cadu (@cadu_veloso). Some influencers are actively promoting the project on social media. Currently, the DApp shows average stability, with instances of downtime that were quickly resolved. It is worth keeping an eye on for future developments.

Kratos Studios (DApp) - Kratos Studios, based in India, is a Web3 gaming startup and the intellectual property owner of the world's largest gaming DAO, IndiGG. Established in 2022, the company focuses on developing various types of games, operating as a Web3 gaming company. In addition to holding the intellectual property of IndiGG, Kratos Studios is also an active investor in the global Web3 gaming space.

Chingari (DApp) - Chingari and GARI Network are short video applications and Web3 social networks. The smart currency incentives earned by content creators and consumers exist in the form of cryptocurrency, namely GARI tokens. Similar to other social networks, Chingari app users contribute by posting or participating in content, such as liking, sharing comments, following, being followed, and rewarding their favorite creators, among others.

Linea (DApp) - According to Dune Analytics, the Linea mainnet has bridged 262,996 ETH, with transaction counts reaching 722,144 and the number of interacting addresses totaling 392,345.

PancakeSwap (DApp) - PancakeSwap is a decentralized exchange based on the BSC. Recently, it has significantly increased its trading volume and doubled its market share with the launch of its V3 version. PancakeSwap V3 brings numerous improvements, including increased capital efficiency, reduced trader fees, enhanced rewards for liquidity providers, and an improved user experience. It has also ventured into blockchain gaming, introduced fiat channels, and expanded its Yield Farming. PancakeSwap recently announced the burning of 8,808,741 CAKE tokens, valued at approximately US$21 million.

Layer Zero (DApp) - LayerZero has released an overview of its V2, introducing a variety of upgrades including a Decentralized Verification Network (DVN), permissionless execution, increased throughput, and enhanced programmability. The mainnet is expected to launch in January 2024. As highlighted in the recent FTX hearing, there is an unresolved dispute between FTX and LayerZero concerning a US$45 million transaction that took place during FTX's bankruptcy. This dispute is anticipated to impact the token issuance until it is resolved.

4.Twitter Hot Topics:

BONK (Token) - BONK has been listed on Coinbase and Binance over the past two days, boasting a market cap of US$1.9 billion and securing the 39th spot in market cap rankings. Its 24-hour trading volume is US$1.1 billion, and it has seen a 176% price increase over the past 7 days, indicating high popularity.

5.Regional Trending Searches:

AUCTION (Token) - AUCTION is the token of Bounce Finance, a decentralized auction platform that has carried out IDOs for MUBI and BSSB. Following the popularity of the BRC-20 sector, the token's value has seen a substantial rise. The brand has been recently upgraded to Bounce Brand, with products including Bounce Bit (a Bitcoin-based application chain), Bounce Box (focused on BTC DeFi exploration), and Bounce Auction. The platform's token, AUCTION, has seen a 75% increase in the past 7 days, with a 24-hour trading volume of US$140 million.

Main Body

Written by: Bitget Research

Data collection time: December 15, 10:30

Data sources: Dune, DApps, Twitter, Google

Note:

1) New active users: Refers to wallet addresses that were newly created on the chain in the past 24 hours and had interactions on the chain.

2) Existing active users: Refers to wallet addresses that were created on the chain 24 hours ago and had interactions on the chain in the past 24 hours.

3) DApp daily activity (UAW: unique active wallets)

4) TGE (Token Generation Event)

5) In this report, the term "Entity" refers to both Contract Account (CA) and Ethereum Original Account (EOA), and is not a result of the aggregation of actual entity addresses.

1.BTC Profile - BRC-20

SATS (BRC-20 Token) - Binance has listed SATS, reigniting the hype for BRC-20 tokens. Today, SATS has seen an increase of over 48%, with over 5x increase in trading volume. The 24-hour trading volume surpassed US$170 million. This surge also stimulated a sharp rise in other BRC-20 tokens like ORDI and RATS.

2.Blockchain Profile - ETH Chain

2.1 User Profile

2.1.1 Core Data

Total active users on ETH: 428,156

New active users on ETH: 89,595, with a daily increase of 16.56%

Existing active users on ETH: 338,561, with a daily increase of 6.87%

2.1.2 New User Profile

Core data: There were a total of 89,595 new active users on ETH yesterday, with a daily increase of 16.56%

Popular Sectors

Popular Projects

Key Projects:

ChangeNow (DApp) - This is a non-custodial cryptocurrency and fiat exchange where users can trade over 200 tokens with no registration or trading limits. The project integrates DeFi and CeFi, with an average exchange time of 5 minutes, and has a very active on-chain trading volume.

2.1.3 Existing User Profile

Core data: The number of ETH active existing users is 338,561, with a daily increase of 6.87%

Popular Sectors

Popular Projects

Key Projects:

OpenSea Seaport (DApp) - Recently, OpenSea reduced its staff by approximately 50% and plans to reposition its team around OpenSea 2.0. The New York hedge fund Coatue has cut the value of its OpenSea shares by 90% to US$13 million, which may suggest that the current valuation of OpenSea is only US$1.4 billion.

2.2 Popular Trading Pairs

2.2.1 Uniswap V2

BTCMEME (Token) - BTCMEME has an on-chain liquidity of US$1.40 million (60% locked for 6 months, the remaining 40% LP available for withdrawal at any time in 7 EOA wallets), with a 24-hour on-chain trading volume of US$1.81 million and 877 transactions in the same period. The token has seen a continuous significant increase for 5 days following its TGE. It has 11.5K followers on Twitter, with regular tweets receiving between 2000 and 8000 views.

2.2.2 Uniswap V3

MUBI (Token) - MUBI is the native protocol token of the Multibit, a BRC20-ERC20 cross-chain bridge project. With the growing popularity of the BRC-20 ecosystem, the hype has also spread to Ethereum. Multibit enables users to cross-chain BRC-20 tokens from the Bitcoin Network to the Ethereum Network to engage in the corresponding DeFi ecosystem. This distinctive functionality has garnered considerable market attention and speculation.

2.3 Popular NFTs

2.3.1 Top NFT Collections

Bitcoin Frogs (NFT) - This project is a popular Ordinals NFT series. Yesterday, with the pullback in the BRC-20 tokens, the price of these NFTs was also hyped, resulting in notably active trading volumes.

3.Blockchain Profile - BSC

3.1 User Profile

3.1.1 Core Data

Total active users on BSC: 1,069,609

New active users on BSC: 188,290, with a daily increase of 15.47%

Existing active users on BSC: 881,319, with a daily increase of 3.96%

3.1.2 New User Profile

Core data: There were a total of 188,290 new active users on BSC yesterday, with a daily increase of 15.47%

Popular Sectors

Popular Projects

Key Projects:

TinyTap Game Events Contract (DApp) - TinyTap is a vast library of games created by educators. Now under the umbrella of Animoca Brands, the project is dedicated to forging an open, blockchain-driven educational ecosystem. Animoca Brands has announced plans to purchase additional EDU tokens from the open market. Binance Labs invested US$3.15 million in the Web3 education protocol Open Campus, bringing a significant level of traffic to the Web3 education sector.

3.1.3 Existing User Profile

Core data: The number of BSC active existing users is 881,319, with a daily increase of 3.96%

Popular Sectors

Popular Projects

Key Projects:

Port3_aggregator (DApp) - Port3 is a blockchain project designed to become a Web3 social data gateway. It provides open data services by aggregating Web2 and Web3 data. Port3 is structured around three fundamental modules: data collection, data reading, and data application. These modules are integral in aggregating various types of information, including community dynamics, social media trends, and on-chain transaction data. It aggregates data through DAO tools and displays the results on its SoGraph.xyz page, including community trends and market movements. The Port3 protocol forms the basis of its open and collaborative data layer, allowing data providers to control their data, earn rewards for providing data, and protect their privacy. Port3 facilitates the rapid migration of Web2 users and data to Web3 and is committed to achieving secure and efficient social data aggregation.

3.2 Popular Trading Pairs

3.2.1 PancakeSwap V2

Optimus (Token) - This memecoin is inspired by Elon Musk and Tesla's AI robot named Optimus. The liquidity pool is valued at US$1.44 million, with 12,000 holders. Experiencing a significant 35.24% rise in value within just one day, Optimus emerges as a token deserving ongoing observation.

4.Blockchain Profile - Polygon Chain

4.1 User Profile

4.1.1 Core Data

Total active users on Polygon: 459,870

New active users on Polygon: 87,470, with a daily increase of 13.71%

Existing active users on Polygon: 372,400, with a daily increase of 8.10%

4.1.2 New User Profile

Core data: There were a total of 87,470 new active users on Polygon yesterday, with a daily increase of 13.71%

Popular Sectors

Popular Projects

Key Projects:

The primary activity on the Polygon chain is inscription minting.

4.1.3 Existing User Profile

Core Data: The number of Polygon active existing users is 372,400, with a daily increase of 8.10%

Popular Sectors

Popular Projects

Key Projects:

MERKLY (DApp) - Merkly is a multifunctional Omnichain platform, aiming to simplify bridging through the groundbreaking technology of LayerZero (LZ). The purpose of the refuel contract is to provide gas fees for chains without gas by using a swap and cross-chain method.

4.2 Popular Trading Pairs

4.2.1 Uniswap V3

LINK (Token) - Recently, there has been significant on-chain activity among LINK whales. A whale address starting with 0x54f withdrew 218,049 LINK tokens (approximately US$3.23 million) from Coinbase. Additionally, there is a whale address that sold LINK at a loss to repay debts on Aave. It is reported that this whale address purchased 237,054 LINK tokens (approximately US$3.55 million) between November 10 and December 2 at US$14.96 each, and then sold 165,083 LINK tokens (approximately US$2.33 million) in the past 4 hours at US$14.15 each. The address still holds 71,979 LINK tokens (approximately US$1.02 million), resulting in a total loss of approximately US$190,000.

5.Blockchain Profile - Arbitrum Chain

5.1 User Profile

5.1.1 Core Data

Total Active Users on Arbitrum: 137,608

New Active Users on Arbitrum: 23,463, with a daily decrease of 5.04%

Existing Active Users on Arbitrum: 114,145, with a daily decrease of 6.24%

5.1.2 New User Profile

Core data: There were a total of 23,463 new active users on Arbitrum yesterday, with a daily decrease of 5.04%

Popular Sectors

Popular Projects

Key Projects:

XPET (DApp) - The XPET mobile version has been launched today. XPET is a SocialFi project on the Arbitrum chain, with gameplay similar to Fren Pet, requiring players to feed, accompany, and ensure the survival of their pets, thereby helping them earn token rewards. Unlike Fren Pet's "main screen" gameplay, xPET operates through a browser plugin, enabling greater interaction possibilities with Twitter.

5.1.3 Existing User Profile

Core data: The number of Arbitrum active existing users is 114,145, with a daily decrease of 6.24%

Popular Sectors

Popular Projects

Key Projects:

MUX Protocol (DApp) - MUX has set a new 7-day trading volume record, with this week's trading volume reaching US$1.52 billion. MUX Protocol is a decentralized perpetual aggregator that can automatically select the best liquidity path, reducing trading costs while meeting the demands for opening positions.

5.2 Popular Trading Pairs

5.2.1 Uniswap V3

MAGIC (Token) - Treasure is a decentralized NFT ecosystem on Arbitrum, and $MAGIC is the native governance and utility token of this ecosystem. Both Treasure’s metaverse and NFT projects, as well as community projects and metaverses, use $MAGIC as the default medium of exchange. For example, Treasure has established a native NFT marketplace, enabling users to trade NFT assets from the ecosystem in one place, with $MAGIC serving as the payment method for these NFTs. The price briefly surged past US$1, leading to increased trading activity.

6.Blockchain Profile - Base Chain

6.1 User Profile

6.1.1 Core Data

Total Active Users on Base: 55,562

New Active Users on Base: 12,631, with a daily decrease of 1.60%

Existing Active Users on Base: 42,931, with a daily decrease of 5.13%

6.1.2 New User Profile

Core data: There were a total of 12,631 new active users on Base yesterday, with a daily decrease of 1.60%

Popular Sectors

Popular Projects

Key Projects:

RAI Finance (DApp) - A DeFi project with relatively high activity on the Base chain. The protocol currently has a TVL of US$1,214,127, a trading volume of US$2,348,846, and 74,802 users. The platform offers token exchanges, NFT trading, and social trading. Users can create portfolios or effortlessly follow others' portfolios.

6.1.3 Existing User Profile

Core data: The number of Base active existing users is 42,931, with a daily decrease of 5.13%

Popular Sectors

Popular Projects

Key Projects:

Fren Pet (DApp) - A new NFT project on the Base chain. Fren Pet is a cross-chain pet simulation game inspired by Friend.tech and developed jointly by Adam (@surfcoderepeat) and Cadu (@cadu_veloso). Some influencers are actively promoting the project on social media. Currently, the DApp shows average stability, with instances of downtime that were quickly resolved. It is worth keeping an eye on for future developments.

7. DApp Ecosystem - All Chains

PlayEmber (DApp) - PlayEmber is focused on delivering customized monetization solutions through its Unity-based software development kit, aiming to facilitate the transition of game advertising revenue from the Web2 market to Web3. The start-up has also received substantial strategic support from the NEAR Foundation. The test version of PlayEmber has been launched and has gained significant popularity.

8.DApp Ecosystem - ETH Chain

UAW fluctuations of all the projects are within the normal range.

9.DApp Ecosystem - BSC

MOBOX (DApp) - MOBOX Halloween event has ended, and there are currently no remarkable promotions.

10.DApp Ecosystem - Polygon Chain

Kratos Studios (DApp) - Kratos Studios, based in India, is a Web3 gaming startup and the intellectual property owner of the world's largest gaming DAO, IndiGG. Established in 2022, the company focuses on developing various types of games, operating as a Web3 gaming company. In addition to holding the intellectual property of IndiGG, Kratos Studios is also an active investor in the global Web3 gaming space.

11.DApp Ecosystem - Solana Chain

Chingari (DApp) - Chingari and GARI Network are short video applications and Web3 social networks. The smart currency incentives earned by content creators and consumers exist in the form of cryptocurrency, namely GARI tokens. Similar to other social networks, Chingari app users contribute by posting or participating in content, such as liking, sharing comments, following, being followed, and rewarding their favorite creators, among others.

12.DApp Ecosystem - Arbitrum Chain

UAW fluctuations of all the projects are within the normal range.

13.DApp Ecosystem - Base Chain

UAW fluctuations of all the projects are within the normal range.

14.DApp Ecosystem - GameFi Sector Across All Chains

UAW fluctuations of all the projects are within the normal range.

15.Gas Fee Consumption - ETH Chain

Linea (DApp) - According to Dune Analytics, the Linea mainnet has bridged 262,996 ETH, with transaction counts reaching 722,144 and the number of interacting addresses totaling 392,345.

16.Gas Fee Consumption - BSC

PancakeSwap (DApp) - PancakeSwap is a decentralized exchange based on the BSC. Recently, it has significantly increased its trading volume and doubled its market share with the launch of its V3 version. PancakeSwap V3 brings numerous improvements, including increased capital efficiency, reduced trader fees, enhanced rewards for liquidity providers, and an improved user experience. It has also ventured into blockchain gaming, introduced fiat channels, and expanded its Yield Farming. PancakeSwap recently announced the burning of 8,808,741 CAKE tokens, valued at approximately US$21 million.

17.Gas Fee Consumption - Polygon Chain

Port3 (DApp) - Social data gateway Port3 Network announced that the cumulative trading volume for its BQL trading mining has exceeded US$100 million, with fee revenues reaching US$500,000. BQL trading mining is an event hosted by Port3 Network, where users can participate in an 80% cash reward pool of transaction fees and a total of 350 million Gemstone rewards by running BQL scripts to execute trades.

18.Gas Fee Consumption - Arbitrum Chain

Layer Zero (DApp) - LayerZero has released an overview of its V2, introducing a variety of upgrades including a Decentralized Verification Network (DVN), permissionless execution, increased throughput, and enhanced programmability. The mainnet is expected to launch in January 2024. As highlighted in the recent FTX hearing, there is an unresolved dispute between FTX and LayerZero concerning a US$45 million transaction that took place during FTX's bankruptcy. This dispute is anticipated to impact the token issuance until it is resolved.

19.Gas Fee Consumption - Base Chain

Soswap (DApp) - RAI Finance's product that participated in the Base Onchain Summer event. It is one of the decentralized financial products launched by RAI Finance on the Base Chain.

20.Top Trending Tokens on Twitter

BONK (Token) - BONK has been listed on Coinbase and Binance over the past two days, boasting a market cap of US$1.9 billion and securing the 39th spot in market cap rankings. Its 24-hour trading volume is US$1.1 billion, and it has seen a 176% price increase over the past 7 days, indicating high popularity.

21.Google Trends - Global

AUCTION (Token) - AUCTION is the token of Bounce Finance, a decentralized auction platform that has carried out IDOs for MUBI and BSSB. Following the popularity of the BRC-20 sector, the token's value has seen a substantial rise. The brand has been recently upgraded to Bounce Brand, with products including Bounce Bit (a Bitcoin-based application chain), Bounce Box (focused on BTC DeFi exploration), and Bounce Auction. The platform's token, AUCTION, has seen a 75% increase in the past 7 days, with a 24-hour trading volume of US$140 million.

22.Google Trends Surge - East Asia, South Asia, Southeast Asia, Hong Kong, Macau, and Taiwan

a) South Asia Region

India Trends: FUN, SATS, YFI, MYRIA

Pakistan Trends: ACE

b) Southeast Asia Region

Malaysia Trends: LUNC, BTC, ADA

Philippines Trends: BEAM, SATS, PI, ADA, INJ

Singapore Trends: GEMINI, OLAS, BEAM

Indonesia Trends: RNDR, DOGE

c) East Asia

Japan Trends: News

23.Google Trends Surge - English-speaking Countries, Europe, CIS Region

a) CIS Region

Trends: News

b) English-speaking Countries

Australia Trends: PEPE, AUCTION, Kadena, LCX, SXP

UK Trends: WOO, IOT, HNT, METIS, AMP, COTI

USA Trends: LADYS, BONK, NDX

Canada Trends: MYRIA, ARKHAM, FTM, ORCA, HNT

c) Europe

France Trends: OCEAN, HBAR, OMI, ILV, DREP, STX, AUCTION

Poland Trends: BTC, CAKE, Stellar

Switzerland Trends: GMX, ETH, BONK, INJ, SATS

Turkey Trends: Coinmarketcap

Germany Trends: XEN, QUANT, SOL, BTC, XRP

Italy Trends: AUCTION, BTC, FIL, ADA, AGIX

Spain Trends: SHIB, BEAM, ARB, OSMOSIS, JTO, GROK

24.Google Trends Surge - Middle East, Latin America, Africa

a) Africa

South Africa Trends: Mining, ADA, ICP, AVAX

b) Middle East

Trends: News, Crypto Bubbles

c) Latin America

Brazil Trends: BTC, DOVA, GMT, MYRIA, LDO, ADA, SATS, SOL

Argentina Trends: CAKE, NEXO, BONK, AVAX, SOL, SHIB

Mexico Trends: MANA, BONK

Reference Links

1. Dune On-Chain Data Dashboard - Blockchain Profile: https://dune.com/bitgetresearch/bitgetreseach-chains-overview

2. Dune On-Chain Data Dashboard - Gas Consumption: https://dune.com/bitgetresearch/gas-overview