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 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 0x80c295866af40d25602ef7c03a2d7815c96b39be7562063db629648ebcb9893a. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9320c091-cd5c-489f-b9c1-c95d7f09c2c8.json and https://artists.proofprofile.net/proofs/artist/9320c091-cd5c-489f-b9c1-c95d7f09c2c8.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 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 0x04e6cf087f5e75cb3b50b8ac246f7695985916b060c33ca1b8d240949130c797. 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/INO131605296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dfb40c437f1656bef41f6a1ed17d66b5b22a5ea693b8263016ad45fbbc5580e. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/INO131605297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa23fd4c6a47de12639d125729cce70fac7c4762c5c79dbc5663ad04375b9f10. 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/INO131605298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b08b39cd3cb1942fa753cc8556a6ad81cd527f522f664b975247a54fee9d13. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/INO131605299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ae108e262c16fdceae6ea35e3fdec7153c330e2fb7f2cdf03958a4eb70c7b88. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/INO131605300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6f24a507e8e735e77a5b48850a07b1d9d4792325f9e8f1ce23a7cf3a74dd9a. 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/INO131605302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x739919849d0734a05d0d0e48d48da11eb9234b875ad39236f8f6619dea253a28. 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/QM4TW2372974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f2f2eff8d5d7a459ebee597975614bb1b606b575c79a90c09e308f46219855c. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/INO132101737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaf29c3c85796341b29754e3fde43bf96a6f907f685d5d5b571fb58f64060895. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/QM4TX2435186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee8af05e1a9538c9e1b87296e164c7318c703dd8ec46fa54bcb1c94513ae6f4. 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/USLD91729685.
Look My Way (feat. Roach Killa, Blitzkrieg & Kat Eyez)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d57658144904a7da7088871ce435509cf38e039ceb16d4a81f840f856ecd8ab. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/USLD91729684.
Capitalist Musician with a Left Leaning Avatar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x241b5fbc5ff588e0c3490ca49e21dfed79d26ceba0adae09393768a4f8d8c8c7. 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/USCGJ2297778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e1b0bf696e957ec6e255cc1a17fb648311931944ec4ffda2697ad91eeafc6a. 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/USCGJ2297779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f3be9996f55119a9a97dbe03015f43cacc459a38497b4a5082ea2bd3b4ebb8b. 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/QZHN91980962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde61d6a362dd5017152f497e5984401494e122e49a8346d0eeb26b8c0a87d99d. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QMFMG2373051.
Take That Sorry (Up Yours) [feat. Chezin and Vrnda]