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 0x373fa2d97d1f81aed55826eb89955fb3706c58b2b74142d9413a2236490c8df8. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a3c04f1f-2a81-4429-a6ff-57667bd96c46.json and https://artists.proofprofile.net/proofs/artist/a3c04f1f-2a81-4429-a6ff-57667bd96c46.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 0x741e67ed64b38cf6108b3f3e96fd3f02ee4962d9c95b4ed7a5b913fa01798258. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QM5LC1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec623a1c656532c417219e6d485cc0192ba929a819d4534978df31c92595b09. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:26:59Z), 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/QM5LC1800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0efa398acfd0556456830d988dc9d16ceb53b472c9bdbfe2369cedc3053326c. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QM5LC1800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb117cb5090f4e9dca776323575d48b24da48377f1d68611c99e49f9e7f475530. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBWUL1812033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51ceed53e408d3980a90389d388702a817607f66ff594ac6ab077fd1c5df8553. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/GBWUL1812044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x067b769106241a7bc01ca683f7b00ff19a8ff4c9ce981be665b41bf8b0df366e. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/RUAGT2417697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a7c98316ece0c055d1998635b22abe045d0061faa53c7ecd3ce56263f3886f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QM5LC1800223.
Armageddon (Entropy Zero Remix) - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd6339c9fa8695f1ac4129fbf10ad38d8a4bc5f0b386e658a08056cf76166cf. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM5LC1800234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75dda80804f6808fd7f6e527063ef8e9e4c28a642579932c6e6a3af38e5300e6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QM5LC1800324.