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 0x7aeba160c0364c58aaeaf96eebdd6157fb294c959a22f8d8e1f69fe473d4ff97. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/639bed44-44ef-40e3-a1d3-b909acaf59ce.json and https://artists.proofprofile.net/proofs/artist/639bed44-44ef-40e3-a1d3-b909acaf59ce.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Crying over Pros for No Reason (Deluxe Edition)
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 0x437d54e04df4028eb56a05bf61733acf7d3fdcb5033c95472e350cad034584a3. 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/US78Q0500308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb904e4a8282356a7e1387fab1db11b579022043249c8fb741aa615c622e24dd5. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/US78Q0500309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd620f4812805d5e03f70ec506a08ffd0f301ebee0ef7e9f05fbfea2e0f78d472. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/US78Q0500310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c4c0523e480f11a47dbc09d51627a01848103d74e98828c04c8438f4d2dad4. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:22:21Z), 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/US78Q0500312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa990b46d3bf898639f4fe65643d2ed0de5a43acada9682352db843401a325949. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:54:50Z), 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/US78Q0500313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10347f9d05cbc5ace3f82939d49aa7e59cc77c9dcd7d66356d30d3445ce24c6f. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/US78Q0500315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a5a697c03bf7755401517185a0cd84ff30656e588ab79a01f6b909ba24d1182. 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/QM7281433324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0727d5c531ef08e843a6d3618cae0fb6610aa1c0c962e3f18c7635f612fb1203. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/QM7281433325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc4b719022756a300c2bdae02e88a7b973753c65d08906374e27b38ced6f67d. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QM7281433326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880bf617673f357805939fb751fef76134a7d9bd4dc8a584f4bcbcb94ef9f2bf. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QM7281433327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8128d43014ee5306bad7c2aa869dc7232c7dc311b421fa75090484c0c8eec569. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:10:31Z), 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/US25X0704004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a1877ce92f878bcdf531f32cdab297b4a4429950bd0d058b491fd07dab7dfb8. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/US25X0704005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7a1a1b04a5062c3d09fec8bdf83b68ad718e5fe637b12c98a017be633b74f8a. 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/US25X0704006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84673793524370e85c5a7cceda6825dbb7bcb4001762d983e3d9e00876c2b9dd. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/US25X0704009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c2ea68d65e9696424376868d7bce5f62996697b5a086dcf6d393482717adfff. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:42:45Z), 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/US25X0704011.
Tonight With You / Find You / That's Me Baby
Take Your Time / Tonight With You / Find You / That's Me Baby
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1eed76cf7cb4f8d5329ac398827d603a0f9241ea14a0d62170c64e59cb97d45. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QMFME2087268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x145e2e1b626edb56d836c00d71967c9b53ed341decc98dd8f5e102350f5f92d9. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:31:05Z), 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/QMFME2087269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce28d755b2ec682c5521f5e03125a107eea725ba3bb73f58a3e0c9a77067c5f. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:52:30Z), 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/QMFME2087270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf06cbe10fe5c37fc9db9feb95e853a2a002c28676d49248ef19df293c6f7a1bf. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QMFME2087271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf81adbf19121570dbfad6d47bd8ddff17a7929d7baee21a303722c49d86c3c4c. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:31:45Z), 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/QMFME2087272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38c630544bf3f5fe03a0b44d958f9c5e0e375a60509cb0b4c0a8b2d74307d31. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-20T00:24:16Z), 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/QMFME2087273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad0de537b2145cb665a388af196c673f55c44c978c6b1454346c7ef3cc9ac5e1. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QMFME2087275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff9aafb5662325a06f4173ccb8ef0b0ced18e49ca2e919d19b0b0cbdc23a8c9a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QMFME2087277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0d8a89f2290d35cff7f859aa62fc801560c71619eb1eb1623d363e4e3925fe6. 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/QMFME2160495.
Between Two Points X Our Demons (revision)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc8602e777f5e939f8cb8f779d8ec7dcfedd9867f647a21d51cef13e5b94dca. 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/QMFME2160498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4b0dcdc880c800827a0902e671186332ce19b814059df50a98df552e4ba387. 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/QMFME2160501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b27db9c7ed8a9f67a118653b1f307dffdc96ee953af023a62a76a4015ee49a. 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/US2J70699972.
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