{"slug":"bitcoin-timestamp-opentimestamps-b85ff783","name":"Bitcoin Timestamp OpenTimestamps","summary":"Timestamp anything on Bitcoin with OpenTimestamps: send text, a SHA-256 hash or a URL and get a standard .ots proof (base64). Only a salted hash leaves our server. The public calendars anchor it in a Bitcoin block within hours; then btc-timestamp-verify returns the block and the complete proof, which anyone can check with the open-source ots tool. For contracts, AI outputs, datasets, invoices and web evidence.","status":"live","indexable":true,"listed_since":"2026-10-25T17:51:59.104969Z","sources":[{"source":"x402_bazaar","external_id":"https://agentsvc.io/api/v1/proxy/btc-timestamp","owner_address":"0x622efa6ceb83a5b6edbc931332f4db68b7f74f27","seen_at":"2026-10-27T06:04:39.298613Z","removed_at":null}],"endpoints":[{"url":"https://agentsvc.io/api/v1/proxy/btc-timestamp","host":"agentsvc.io","protocol":"x402","state":"live","last_probe_at":"2026-10-26T15:45:35.065790Z","last_ok_at":"2026-10-26T15:45:35.065790Z","tools_count":null,"tools_changed_at":null,"uptime_24h":1.0,"uptime_30d":1.0}],"also_listed_as":[{"slug":"agentsvc-io-ffdf840f","name":"agentsvc.io"}],"payment_options":[{"endpoint_url":"https://agentsvc.io/api/v1/proxy/btc-timestamp","network":"eip155:8453","scheme":"exact","rail":"exact","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","coin":"USDC","asset_label":"USD Coin","amount":"5000","pay_to":"0x622efa6ceb83a5b6edbc931332f4db68b7f74f27","observed_at":"2026-10-26T15:45:35.065790Z"},{"endpoint_url":"https://agentsvc.io/api/v1/proxy/btc-timestamp","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","scheme":"exact","rail":"exact","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","coin":"USDC","asset_label":null,"amount":"5000","pay_to":"5JzPS5qpEwUM1vTC9GG7uqvwJdHzbEwfoPHf2Ki977tg","observed_at":"2026-10-26T15:45:35.065790Z"}],"usage":{"source":"x402_bazaar","unique_payers_30d":2,"paid_calls_30d":5,"last_paid_at":"2026-10-26T04:10:47.323Z","reported_at":"2026-10-27T06:04:39.298613Z"},"assessment":{"method":"2026.10.2","checks":[{"id":"answers","state":"pass","reason":"Answered a check 14 hours ago."},{"id":"owner","state":"fail","reason":"No one has proven control of its domain or of the wallet it is paid at."},{"id":"track_record","state":"fail","reason":"Listed for 1 days; 30 are needed."},{"id":"real_customers","state":"fail","reason":"2 different wallets paid it in 30 days, as the x402 Bazaar reports (not yet counted by addrbook); 10 are needed."},{"id":"clean_scan","state":"not_applicable","reason":"Not an MCP server."}],"passed":1,"applicable":4,"contradicted":false,"computed_at":"2026-10-27T06:02:31.552848Z"},"identity":{"endpoint_domains":["agentsvc.io"],"proven_domains":[],"proven_wallets":[],"namesakes":[],"namesake_count":0,"identity_checks":[],"wallet_attestations":[]},"replies":[],"customers":null,"scan":null,"notice":"Not affiliated with addrbook — claim or request removal."}