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 0x0939771beb298914c07e357dcaa8f7c0dcb9ac025c7a1c4ecb4c65652b151a4f. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a516ec46-09e5-48d8-8c0e-cd52edff903d.json and https://artists.proofprofile.net/proofs/artist/a516ec46-09e5-48d8-8c0e-cd52edff903d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Trio Animæ: Complete Studio Recordings, Vol. 3
Trio Animæ: Complete Studio Recordings, Vol. 9
Trio Animæ: Complete Studio Recordings, Vol. 4
Trio Animæ: Complete Studio Recordings, Vol. 6
Trio Animæ: Complete Studio Recordings, Vol. 1
Trio Animæ: Complete Studio Recordings, Vol. 2
Trio Animæ: Complete Studio Recordings, Vol. 7