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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd159e28b804aa5672bf371e96277f99040cb31e09f13f8014d278e8016541f4c. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/480f62f2-3532-4594-9208-f10ee3cdc75c.json and https://artists.proofprofile.net/proofs/artist/480f62f2-3532-4594-9208-f10ee3cdc75c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mon cahier de chansons, No. 2 (feat. Émile Decotty et son orchestre) [Mono Version]
Paris Mann' Quins / Le monde et toi (feat. Émile Decotty et son orchestre) [Mono Version]
Julie la rousse (feat. Georges Alloo et son orchestre) [Mono Version]
Mon cahier de chansons, no. 3 (feat. Georges Alloo et son orchestre) [Mono Version]
Mon cahier de chansons, No. 4 (feat. Georges Alloo et son orchestre) [Mono Version]
Bal chez Temporel (feat. Georges Alloo et son orchestre) [Mono version]
Mon cahier de chansons, vol. 5 (Mono version)
Mon cahier de chansons no. 6 (Mono Version)
Mon carnet de chansons, no. 1 (feat. Georges Alloo et son orchestre) [Mono Version]
Mon cahier de chansons, no. 7 (feat. Daniel White et son orchestre) [Mono Version]
Deux sous d'violettes (Collection "Légende de la chanson française")
Mon cahier de chansons, l'intégrale (Mono Version)