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 entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ddfad6edab7fa969b7619f9670f8671d3c210c1d3b25a6acd5bc010dbb46330. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/13314af4-395b-4076-aea9-c6333eb7d954.json and https://artists.proofprofile.net/proofs/artist/13314af4-395b-4076-aea9-c6333eb7d954.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
On the Beach Until Sunset (part 1) - 8D Audio
On the Beach Until Sunset (part 2) - 8D Audio
On the Beach Until Sunset (part 3) - 8D Audio