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 0x75af74e333d5f9028220e83c500d5db685a5d2c09ec7128ff6d8c62d049cc0c4. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fc02e44d-25f0-404b-b3ab-5e10b5a38115.json and https://artists.proofprofile.net/proofs/artist/fc02e44d-25f0-404b-b3ab-5e10b5a38115.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lyrical (88 Bpm Eb Minor HipHop Rap Beat)
Forever (97 Bpm G minor Beat by HostileProd)
Immortal (HipHop Beat Boom Bap E minor 89 BPM)
Rhodes (90 BPM Eb Minor HipHop Boom Bap Type Beat)
Mellow Strings (107 BPM F minor HipHop Beat)
Forgotten (90 BPM A minor Boom Bap Beat)
Authentik (88 BPM Eb Minor Boom Bap Beat)