1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e59faeda5101c7bf26a7e8b3aef8b850e2a36b7be09fd378facd050ab8611b. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e9cea0a9-29a5-478b-adf7-20141c7af461.json and https://artists.proofprofile.net/proofs/artist/e9cea0a9-29a5-478b-adf7-20141c7af461.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Sinners, the Plague and the Voidfallen
Sink To The Bottom Or Swim For The Shore