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 0xdf063fad03c7f66cbf8e9f72eb3c2a316068dd1dc70e4258c0e4b8c512dadf76. 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/8e13aa27-55b6-411b-9f66-5baeb70e5307.json and https://artists.proofprofile.net/proofs/artist/8e13aa27-55b6-411b-9f66-5baeb70e5307.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nils Holgerssons wunderbare Reise (Original Soundtrack)
Das Jerusalem-Syndrom (Original Motion Picture Soundtrack)
Alles muss raus (Original Motion Picture Soundtrack)
Familie! (Original Motion Picture Soundtrack)