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 0xf0569fc20455f90370810f39fef480b8d2b25fd37c8f9ae79dab1f09e4c4d13b. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5ba2bf88-3713-4ae1-9e2c-59cb63887e6d.json and https://artists.proofprofile.net/proofs/artist/5ba2bf88-3713-4ae1-9e2c-59cb63887e6d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Barbecue (Original Motion Picture Soundtrack)
Hollow Knight: Silksong (Original Soundtrack)
Hollow Knight Medley: Main Theme / Dirtmouth / Hornet (From “Hollow Knight”)
{"copyright_id":"0xd4ed0ee6a8144be97f3e098cae3cc1f30d4d380da51dd9130cc8c2807143a51f","isrc":"QZGWW1963745","name":"Hollow Knight Medley: Main Theme / Dirtmouth / Hornet (From “Hollow Knight”)","registered_at":"2026-06-09T14:48:28Z","spotify_id":"3Cp27epQ4tiG41bE2MHV29","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4ed0ee6a8144be97f3e098cae3cc1f30d4d380da51dd9130cc8c2807143a51f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3Cp27epQ4tiG41bE2MHV29.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3Cp27epQ4tiG41bE2MHV29.