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 0x8f300f9e10b80862a7cae3b868dbade9f9c8e677c601fe6ad7b210fe9f70865e. 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/279c0e12-3f84-4107-b56a-3ae259fd2129.json and https://artists.proofprofile.net/proofs/artist/279c0e12-3f84-4107-b56a-3ae259fd2129.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dave and Ava Nursery Rhymes and Baby Songs, Vol. 2
Dave and Ava Nursery Rhymes and Baby Songs, Vol. 1
Dave and Ava Nursery Rhymes and Baby Songs, Vol. 3
Dave and Ava Nursery Rhymes and Baby Songs, Vol. 4
Dave and Ava Nursery Rhymes and Baby Songs, Vol. 5
{"copyright_id":"0x4ad4fdcaeca0f1bc199b5fdc36fbe0f2f5003aefff01a6f571494281a9221aba","isrc":"TCAEZ2058956","name":"Winter Fun","registered_at":"2026-06-28T20:31:15Z","spotify_id":"1PoDsTxny8t0mOdS9StivL","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 0x4ad4fdcaeca0f1bc199b5fdc36fbe0f2f5003aefff01a6f571494281a9221aba. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1PoDsTxny8t0mOdS9StivL.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/1PoDsTxny8t0mOdS9StivL.