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 0x564660b1c7a62c863cc8a5a4cfdb188ca1e7f3b3476647f9715be30764b2eef8. Chain 2 (Bitcoin): anchored in block 953947 (2026-06-16T13:14:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/23111909-b716-4a81-9f41-11ee434fe160.json and https://artists.proofprofile.net/proofs/artist/23111909-b716-4a81-9f41-11ee434fe160.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Qu'il ne reste Kelle ("Comme... L en Miel")
"Comme... un Vendredi à la Radio." (...Vendredi à la Radio.")
Comme... un lundi Jaune. (... un lundi Jaune.")
Comme... L en Miel. (extrait de "Comme... L en Miel.")
Comme... un Bleu dimanche. ("Comme... un Bleu dimanche.")
Comme... le Vert d'Hier. ("Comme... le Vert d'Hier.")
Comme... un samedi Rouge. ("Comme... un samedi Rouge.")