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 0x142113d26072340e7ef42dfc29991dbdd1654507ad4c3777314cee85283b2c82. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e58b6108-da45-40a9-baa7-6d7427abca42.json and https://artists.proofprofile.net/proofs/artist/e58b6108-da45-40a9-baa7-6d7427abca42.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 0xd59f915b1ecc1df16aa4953e44f1689bb5e48a94aedef6c16597a27f0a98d9f9. 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/GBF089190317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x976e6d57b3bcd2cb404d7f9981827217c5f2e724b97b8b7222d526f94321899e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBF080300689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36b669d2e8703ffec6532d189e0df367bb2161a14bf936842c63f7a130554a04. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBF080300688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x556165d81a9492cdd15447c4e0551fa93109d1e18831173c6906f2f8bd3ca934. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBJSH1922902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf4f7448a5bbb2e243a98bb05cefe442bcccdfa345d612466ec92c142e2c5a2. 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/GBJSH1922904.
Who Chooses the Seasons (feat. Carleen Anderson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed8df344865d8ede3eb2fa439b14de5b5bbc8fa14e8b82907923d643f70b4ee. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBJSH1922906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4570ddf9fdec392902a2fa6f4be678361336a6a863b41fed9da1ecbf25b7eede. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/FR47Q0000123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x762e2b67fdf2815432cc1b7e6d7915a5083e99c56906126c9e1fdd381b091c7f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBARL9400079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6481e0ee954761be4e242986f5784d9134abc580f69d079f70106482d5c30c83. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBARL9700268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e195bee5362ecd5af8eb399052a242aa689049d25a1c15218c23a47ff4242a7. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBJSH1922913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75caa61583574edffa665dbaa1e4d8f8a3d27363b156bddd962e00ea09542d2c. 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/FR47Q9903930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ac00bc654dfbdbe9658077c0715e9dc5bf1ba23ef3c65d328b125277ded6e09. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/GBJSH1922915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe560fb4227ceda065426f18cb29b66019d633f0e2d4ab8e171bc8f2de5639b9d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR47Q9903900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed7c010658e4dfd2f2d5931cfcbac1c4fd8c0f8dc9f432fa4f488d0138e1c10. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/GBJSH1922901.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099b1ac221da870a68c36a2497fbd10ce383caa7527a0139b56492260cacd4e7. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/GBJSH1922903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4701acdd50f1ebad7922de8150dceb57ed418c91ee4c4b5063afe28d92fca62c. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/GBJSH1922905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa716bba41a5e162419530a683b4ddf78ee43129d684c9965a32551d6f0827495. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBJSH1922908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0171be7b9b2c93eb74af59d433abba7fbea713d6364a5ca43610de80ed6a8fb1. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/GBJSH1922912.