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 0xfc9ccc06f86fb3782185779bc5cd16ddc8e46dff71de83fd93e8eeb2079b5298. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7627a353-1632-4ee0-88b3-ec7bf6d8cc2f.json and https://artists.proofprofile.net/proofs/artist/7627a353-1632-4ee0-88b3-ec7bf6d8cc2f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x10c39b2325c1e5f4489430d8f53c9049eb92ef9d972a7d9921fa5e43a9fd94d9. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QM6MZ1712752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca05746e44019ea1378bb2576f0986c2511271f499f9cbd25c53a4f1530c0e0d. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/QM4TW1771501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f9501f8470b39003b0b985419054a2ab541e8bb55116bdbfe5c3a6fb72ae01. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:59:51Z), 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/QMDA72476757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ea8cb75db29f3aa81a09408b3ab2d7ca43c9d63fa4488b6902c8878db486d7. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:29:59Z), 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/QMDA72476752.
There's A Place In My Mind Where We All Burn Alive
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x684fbe91a017ac1bc7db519d506fe7e353b37f5b1f7aa9e66339cdf66e094c7e. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:05:03Z), 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/QMDA72476748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed9c30051671b089f3676790ff6584ec9f5479a552c58acd13ddbce080d31d0. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QMDA72476749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d2e754987b3830568a32cf73c25fee34fab280c2314d6ddbbe8b3aa55d3f028. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/QMDA72476750.