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 0x4773dd97801909ae23f1a2db043f348314893765ceb8335ff3bf730ed24fc824. Chain 2 (Bitcoin): anchored in block 953717 (2026-06-15T01:05:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8765f3b8-f12b-49fe-96e1-783b45cca8b7.json and https://artists.proofprofile.net/proofs/artist/8765f3b8-f12b-49fe-96e1-783b45cca8b7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dansefestivalen Sel, Gudbrandsdalen 2007 - Råte løyle'
Dansefestivalen Sel, Gudbrandsdalen 2007