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 0x84e8256e8b4ff1e325fb171693e8af57211864d830b19c779b70f50c8ce3495d. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/861872af-7092-4c54-9628-c76acce1343a.json and https://artists.proofprofile.net/proofs/artist/861872af-7092-4c54-9628-c76acce1343a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Slows - Les plus belles chansons d'amour, Vol. 4
Slows - Les plus belles chansons d'amour, Vol. 3
Slows - Les plus belles chansons d'amour, Vol. 2
Slows - Les plus belles chansons d'amour, Vol. 6
Slows - Les plus belles chansons d'amour, Vol. 1
Slows - les plus belles chansons d'amour, Vol. 7
Slows - Les plus belles chansons d'amour, Vol. 5
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