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 0x13374361c5a7b396cd7c0f458324b7f51cfc484cc864856149c57cf5059ca296. 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/3ec6b398-43b6-42a1-aa83-6468a12c0c30.json and https://artists.proofprofile.net/proofs/artist/3ec6b398-43b6-42a1-aa83-6468a12c0c30.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 0x06bb50543af92ba952556c2c996cfefee4761eaece0ec2c9c6b09b1c60395bf3. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QMCE32000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05b8ca984daca80da6fcda49212bd5b16a30d0cb3f0868714df3d0b385f08a31. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/QMCE32000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64c8ae0b7088f0e540cca52a4e6049cd610e3136ff55b60f59c4556c485fd57f. 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/QMCE31902501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578230cd459624fcbacf3f6038ed217890de8147e8b404bb54b0048c2c331ad7. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QMCE32000012.
Fuck Nigga (feat. Stunna 4 Vegas) - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83903433aa93905b85014e43ab014fe019fdc43aa6cb5720541178bf6dfd1e35. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QMCE32000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b79f0075b7164b8d78638ac65a065bd5919f70e25019c764cb20699e9e878bc. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QMCE32100431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87fc78158203be6c0e9ab07b3ef2db59ec2979e62f2bb27f2a770a04f0898042. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QMCE32100888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabfa0a124e837fdaa00e48689b37573ff6b366df7e88aafddc57d3317ab1f6bb. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/QMCE32100892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea4075486b15f182153d99db499d840ac38b4fffd32fda5dd862c5b79f9ce90e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QMCE32100893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dbfb8721ddd3416ef8fa1cb8af4c2f1a72f114a089cc696eff829f96ebc6a45. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QMCE32100897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f3a81761ce48522d9a20357140c3175e10dfa6be529f51848481097e904f76a. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/QMCE32100898.