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 0x11ca4b7d8899340a1934957214912c1e9dbcfb7c2cd190b540685bd11fbbd26c. 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/9cae19f8-ab3f-4fa5-9d3e-504808e65cec.json and https://artists.proofprofile.net/proofs/artist/9cae19f8-ab3f-4fa5-9d3e-504808e65cec.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 0x74a94b280c1cdcd94bd02ab5395c9d168d32f8051f86d98e24bdfdcb931961ff. 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/SEBGA2300630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22aa3e02e34984d9fc142eb6598be07489e4631829f253a946a013feefe9beb2. 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/SEBGA2100037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc2a2a9c401764f43ba47e82f419103906ac55445824e384f78959ad03c0892f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SEBGA2000376.
I Think She Knows (feat. My Marianne) - Interlude
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f2d1bdd422f6dc51da6c4464cda287e49ed138d76e9855ef26b201ec97046c. 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/SEBGA2000747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf33aa30ece03fb1c423dddcdce7204493b793a378151a62b7283908e0ffc462. 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/SEBGA2000861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22aa3e02e34984d9fc142eb6598be07489e4631829f253a946a013feefe9beb2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBGA2100037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a510d76ce2958f5b5b1f9fe578701f8ffc3812fc70e994a46d396a5ef68970d. 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/SEBGA2100176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e6fad23304d83c1b0a126cf63ad41c610e605ad193886f1e209701bb2674627. 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/SEBGA2100345.
Groovejet (If This Ain't Love) (feat. Vera Hotsauce)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0e752bcf72bdf7d1a9129bd3548784dbec0ca8d80df61c52d4c5b5ac80bfc98. 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/SEBGA2100428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11324bc641a2cf5f0812046ef0d0c3862b912d8039ded852263589f11239a1f4. 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/SEBGA2100670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x882cd44a3080b96882b9053ab71cef8212e0aed1509c772634734fa2f1895279. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SEBGA2200055.
Sweet Disposition (feat. Askar and the Ghosts)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00e8f8b2b75530ffe093af71c1ed6b8f14cef722cb46e637e535e5a2f05680de. 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/SEBGA2200148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd139fd102ab7c584955218278fe6dfc3231520fbeb5e3de2804875347aab45bc. 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/SEBGA2201991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7373fe762e8e714018d1d6aad0b229bb75efba723302219baabf034962f042c6. 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/SEBGA2400554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3265f7722943eb6df6a9be426f056d1d516f41b7a5c713d8440eb4efdb63da5b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBGA2400356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85bd37efba781db36ba38f92dd8b986b83ec21ac5fc4d94f1046d40d6f03d46d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBGA2400196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91490056ef86b792e505999fb5a48876d7be105632354f05c19157c4c16fc7bc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBGA2304767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd139fd102ab7c584955218278fe6dfc3231520fbeb5e3de2804875347aab45bc. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SEBGA2201991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00e8f8b2b75530ffe093af71c1ed6b8f14cef722cb46e637e535e5a2f05680de. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SEBGA2200148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0e752bcf72bdf7d1a9129bd3548784dbec0ca8d80df61c52d4c5b5ac80bfc98. 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/SEBGA2100428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e6fad23304d83c1b0a126cf63ad41c610e605ad193886f1e209701bb2674627. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SEBGA2100345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf33aa30ece03fb1c423dddcdce7204493b793a378151a62b7283908e0ffc462. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBGA2000861.
I Think She Knows (feat. My Marianne) [Interlude]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc2a2a9c401764f43ba47e82f419103906ac55445824e384f78959ad03c0892f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBGA2000376.