1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0xb29991b75147daba3bd4efcf96e373b0ce7399b961aed529d361f97af8f6084e. Chain 2 (Bitcoin): anchored in block 953687 (2026-06-14T20:19:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/68bc86fd-edc6-413f-9108-ea9b76244cd7.json and https://artists.proofprofile.net/proofs/artist/68bc86fd-edc6-413f-9108-ea9b76244cd7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Too Tall To Be A Woman, Too Short To Be A Tower
How Can We Eat Pasta If Mr.Panzani Is Dead?
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe700ba1078fc63a77186f1b457543a47532e00598d3e6bd9d3e7f861d12428b2. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ782482786.
Can't Teach The Old Monkey How To Grimace
Maybe Your Mum Doesn't Love You Enough <3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce276e0db15649ed1bf411f1627a38295c253648b2d47326a318f056c820d4c. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES74F2500054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ee4e761bea2ddf07b8045283f12e0f2b55cfa0b0cc9b6c82a7984d958b7e227. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES74F2500055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b051d2cc0c112a642888b0be86d6dc5b32b6f6b38b3b8fce4ed03399e53f89. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES74F2500056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8833b901b506680be2dd662f36a517e94ecbaa615f1ecc5cbc69ef8c2bdcda10. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES74F2500057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe1c15db39161be3a7a5d553c969c1b20d967d2e9c72e8a383a1848bd247345c. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES74F2500058.