1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b968ceb60906a38b642fd12ac394c96ce421705782344d231700fbb7f1e81c9. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d293f5ed-6eaf-4345-912f-c8986b5ecf75.json and https://artists.proofprofile.net/proofs/artist/d293f5ed-6eaf-4345-912f-c8986b5ecf75.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Les plus beaux récits de la mythologie grecque - Ch.3 La guerre de Troie
Les plus beaux récits de la mythologie grecque - Ch.1 La naissance des dieux
Les plus beaux récits de la mythologie grecque - Ch.2 La naissance des hommes
Les plus beaux récits de la mythologie grecque - Introduction
Les plus beaux récits de la mythologie grecque - Ch.5 Persée et la Gorgone
Les plus beaux récits de la mythologie grecque - Ch.6 Les douze travaux d'Héraclès
Les plus beaux récits de la mythologie grecque - Ch.4 Le voyage d'Ulysse
Les plus beaux récits de la mythologie grecque - Ch.8 Jason et la toison d'or
Les plus beaux récits de la mythologie grecque - Ch.7 Orphée et Eurydice
Les plus beaux récits de la mythologie grecque - Ch.10 Thésée et le Minotaure
Les plus beaux récits de la mythologie grecque - Ch.9 Narcisse et Echo