Public blockchain explorers and digital-asset research resources.
A curated guide to authoritative public blockchain explorers, cross-chain analytics surfaces, sanctioned-address lists, and community-attribution resources relevant to lawful research and integrity review of digital-asset matters.
How blockchain research works
Public blockchains expose every confirmed transaction on a permissionless ledger. This gives investigators visibility that traditional financial records do not provide, but with important limits:
- The ledger shows transactions, not identities. Linking a wallet address to a real-world person or entity requires off-chain attribution — exchange records, public attestations, leaked datasets, OSINT, or pattern analysis.
- Mixers, tumblers, and privacy chains (Monero, Zcash shielded transactions, Tornado Cash and successors) deliberately break the trail. Some are sanctioned in some jurisdictions.
- Exchanges are the choke points. When funds flow on-chain to or from a recognised exchange, that exchange holds KYC records on the customer (subject to legal process to obtain).
- Cross-chain bridges complicate tracing across networks. Specialist analytics tools follow funds across bridges; manual research often cannot.
- Speed and finality vary by chain. Bitcoin confirms in roughly an hour; Ethereum and Solana finalise in seconds-to-minutes. Reorganisations are rare but possible on smaller chains.
For matters with legal effect — asset recovery, sanctions exposure, regulatory enforcement — primary records from the originating exchange and the chain itself are authoritative; analytics tools are aids, not proof.
Public blockchain explorers
Blockchair — Multi-chain explorer
Type: Public-chain block explorer. · Maintained by: Blockchair (independent operator).
Cost / access: Free for basic search. Paid tier for API access and bulk download.
Useful for: Multi-chain exploration — Bitcoin, Bitcoin Cash, Bitcoin SV, Litecoin, Dogecoin, Dash, Groestlcoin, Zcash (transparent), Ethereum, Ripple, Stellar, Tezos, Cardano, Mixin, EOS, Monero (limited), TON, Avalanche, BNB Chain. Address lookup, transaction lookup, block lookup, simple statistics.
Limitations: A read-only explorer, not a forensic tool. For complex tracing, specialist analytics services are stronger.
Official link: blockchair.com · Last reviewed: 2026-05-24.
Etherscan — Ethereum explorer
Type: Ethereum chain explorer. · Maintained by: Etherscan.
Cost / access: Free public search. Paid API tier for high-volume programmatic access.
Useful for: Ethereum mainnet addresses, transactions, smart contracts, ERC-20 token transfers, NFT activity, and contract source verification. Labels and tags many known exchanges and DeFi contracts.
Limitations: Ethereum mainnet only. Etherscan’s wallet labels are user-submitted in part and should be treated as starting points, not verified attribution. Layer-2 networks (Arbitrum, Optimism, Base, Polygon) have their own explorers.
Official link: etherscan.io · Last reviewed: 2026-05-24.
Blockchain.com — Bitcoin explorer
Type: Bitcoin chain explorer. · Maintained by: Blockchain.com.
Cost / access: Free.
Useful for: Bitcoin addresses, transactions, and blocks. One of the oldest and most widely-used Bitcoin explorers.
Limitations: Bitcoin only. Address-labelling is sparse compared to Ethereum.
Official link: www.blockchain.com/explorer · Last reviewed: 2026-05-24.
Solscan — Solana explorer
Type: Solana chain explorer. · Maintained by: Solscan.
Cost / access: Free search. Paid API.
Useful for: Solana addresses, transactions, SPL tokens, and program (smart-contract) activity.
Limitations: Solana only.
Official link: solscan.io · Last reviewed: 2026-05-24.
Mempool.space — Bitcoin mempool and chain explorer
Type: Bitcoin mempool and chain visibility. · Maintained by: Mempool Space contributors (open source, independent operator).
Cost / access: Free.
Useful for: Real-time Bitcoin mempool visibility, fee estimation, transaction confirmation tracking, and Lightning Network node information. The technical resource most Bitcoin developers and analysts use.
Limitations: Bitcoin and Lightning only.
Official link: mempool.space · Last reviewed: 2026-05-24.
Sanctioned addresses and watchlists
US OFAC — Specially Designated Nationals (SDN) Crypto Addresses
Type: Sanctioned cryptocurrency addresses (consolidated within the SDN list). · Maintained by: US Department of the Treasury, Office of Foreign Assets Control.
Cost / access: Free, no registration. Downloadable.
Useful for: Identifying cryptocurrency addresses designated as Specially Designated Nationals — including addresses linked to ransomware operators, sanctioned mixers (Tornado Cash and successors), sanctioned entities, and individual sanctioned wallets. The authoritative US source.
Limitations: US sanctions only. EU, UK, UN, and other authorities maintain their own designations, which may or may not overlap. See International Sanctions & Watchlists for the broader sanctions landscape.
Official link: ofac.treasury.gov/specially-designated-nationals-and-blocked-persons-list-sdn-human-readable-lists · Last reviewed: 2026-05-24.
US Treasury — Virtual Currency Sanctions Compliance Guidance
Type: Regulatory guidance. · Maintained by: US Department of the Treasury.
Cost / access: Free.
Useful for: Background on US sanctions compliance expectations for virtual-currency businesses, exchanges, and counterparties. The authoritative US guidance document.
Limitations: US framework only.
Official link: ofac.treasury.gov/recent-actions/20211015 · Last reviewed: 2026-05-24.
Community attribution and abuse databases
Chainabuse
Type: Community-submitted cryptocurrency abuse register. · Maintained by: TRM Labs (sponsoring the platform).
Cost / access: Free.
Useful for: Reports of cryptocurrency-related fraud, scams, phishing, ransomware, and theft submitted by victims and researchers. Useful as a lead source when investigating addresses, but reports are community-submitted and not authoritative.
Limitations: Community-submitted. Reports vary in quality. Use as an indicator, not as evidence.
Official link: www.chainabuse.com · Last reviewed: 2026-05-24.
Bitcoin Abuse Database
Type: Community-submitted Bitcoin-address abuse register. · Maintained by: Bitcoin Abuse community.
Cost / access: Free.
Useful for: Historical Bitcoin-address reports linked to ransomware, sextortion, blackmail, scams, and other abuse. One of the oldest community resources.
Limitations: Bitcoin only. Community-submitted. Many entries are old.
Official link: www.bitcoinabuse.com · Last reviewed: 2026-05-24.
Analytics and discovery surfaces
Arkham Intelligence — Free tier
Type: Multi-chain entity-attribution and discovery surface. · Maintained by: Arkham (commercial product).
Cost / access: Free public search. Paid tier for advanced features.
Useful for: Graph-style discovery of relationships between addresses, with entity-attribution where Arkham has identified the holder (exchanges, funds, public figures, DeFi protocols, sanctioned actors). One of the more accessible discovery surfaces.
Limitations: Attribution accuracy varies; Arkham’s labels are not authoritative. Many addresses are unlabelled. Treat findings as leads, not proof.
Official link: www.arkhamintelligence.com · Last reviewed: 2026-05-24.
DefiLlama
Type: Decentralised-finance protocol and token analytics. · Maintained by: DefiLlama (independent, open source).
Cost / access: Free.
Useful for: Total-value-locked (TVL) data, protocol exposure, stablecoin issuance, yield, fees, and hack tracking across DeFi protocols. Useful for understanding context around DeFi-related matters.
Limitations: Not an address-tracing tool. Focus is protocol-level, not wallet-level.
Official link: defillama.com · Last reviewed: 2026-05-24.
Specialised resources
Crypto ISAC — Cryptocurrency Information Sharing and Analysis Center
Type: Industry information-sharing network. · Maintained by: Crypto ISAC member organisations.
Cost / access: Membership-based for full access; some public guidance free.
Useful for: Industry-level threat intelligence on cryptocurrency-related crime, including coordinated reports on emerging scam patterns.
Limitations: Most material is member-only. Public-facing reports are summary-level.
Official link: cryptoisac.com · Last reviewed: 2026-05-24.
What’s coming in Phase 3
Layer-2 explorers for Arbitrum, Optimism, Base, Polygon, and zkSync; privacy-chain explorers where they exist; bridge analytics — cross-chain transaction tracking; NFT marketplaces and metadata explorers; mining-pool addresses and known-actor labelling; centralised-exchange address labels; notes on paid-tier forensic tools (Chainalysis Reactor, TRM Labs, Elliptic Investigator) — referenced in the firm’s separate paid-database brief, not on this public page.
Disclaimer
General information only. This directory is provided for general information and professional research purposes only. It is not legal advice, financial advice, or due-diligence advice. Information found through any third-party source is not verified by Transglobal Intel Net.
Third-party sources. Transglobal Intel Net does not control, certify, or guarantee the accuracy, currency, or completeness of any source listed. Links are provided as starting points. Each source is maintained independently by its respective authority.
Access conditions. Some sources require payment, registration, lawful-purpose attestation, or local professional access. Users are responsible for compliance with each source’s terms of use and with applicable law.
Not a Transglobal service. Listing a source in this directory does not constitute an endorsement, a recommendation, or a Transglobal service. The directory is a reference index, not an investigative product.
Lawful use only. Users must have a lawful basis for any search undertaken. Users are responsible for compliance with privacy law, data-protection law, anti-stalking law, and any other applicable framework in their jurisdiction.
Reservation. Transglobal Intel Net may add, remove, or modify entries without notice. Outdated entries are reviewed quarterly and updated as resources change.
Last reviewed: 2026-05-24.