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 0x0fce560d119f79cfc06ed83543835fbf07f1fea03f7368de92e1a7e0feae1701. 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/faf5d28e-ce49-4331-bfcd-921c4771d81a.json and https://artists.proofprofile.net/proofs/artist/faf5d28e-ce49-4331-bfcd-921c4771d81a.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 0xe16eee2c0762796c1dc20e6111c55ebb05ba16b8a3400f50b46ce197f157279a. 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/USL4Q2327208.
Before I Go (feat. Teacher Preacher & DJ Supreme)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81881e4bb165d6e16f97ef9618d1739020fcc196a990b7a226d42cc297f3221. 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/QZEQU2036799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc91a7bf90db7992ce701feb66d8b5062b2ef8e6d9c6e045dbd7084e092942597. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/TCADQ1822434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc83181561292aaf4143244ff638be079e7c470f3b463a6f54ff82ce16867e8eb. Chain 2 (Bitcoin): anchored in block 960231 (2026-07-30T08:33:28Z), 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/TCADQ1822469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb66c49d1e183823e550fd67a01cd73bbc0af865d52e64d8c0791ab5ce36ba37b. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/TCACO1699145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa811e4df0ba566688cb9a929f9f63d36fed334eb7f8b240d1ef9b5e52020b74b. 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/TCACO1699154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0f5bf514f6107dca5742ad79c5715613c858aaccd99781a54af0a754617fee6. 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/QZMEN2254473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x668909a5560ab9862d8047c1716bd28547b066a9a070da69c64b742345c5e101. 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/TCAEC1984097.
Trashy Ever After (feat. the Wheeler Boys & Teacher Preacher)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x769c41e11d50797763f2d81d76979a292a59c2cc900be31fbecb1d17779194f0. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/TCADA1782761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf58a2fdadf706f5d2cbe5119b702dcc84c7c76999df3ed2f26859373307041. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/TCADA1782767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d264649bb9dd18b61b7318438d12c368fd0b0f279cfd8e3d5bf0b7d9d2aba2. 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/TCACS1660731.
Mud Cricket (feat. BoonDock Kingz, da PigPen, Teacher Preacher & Kudzu)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b65348be6c54e5771705287bcdd502b38a1c268422adbfb3ab50cd2f800aecf. 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/TCADG1765841.
In Ga (feat. Teacher Preacher & Danny O'moore)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0889d9731805211691f8d3901c0058682a0767f0354886732b562329a3ce97a. 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/TCADG1765846.
Where I'm from (feat. BoonDock Kingz, Teacher Preacher, Biskit & Mark Daniel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x514e3a2b7bdbddc3104279524e4464e0b4b1d7ea8074dc1721d4607f4736ae21. 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/TCADG1774336.
Everywhere I Go (feat. BoonDock Kingz, Teacher Preacher, Phatbakk, Biskit & Dionne Forte)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d156a37743dd79e9eaaa4fd436ff7592af05886bb91f986765a952068bd2ea. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/TCADG1765879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d444af0f0ec8868c1af9606341afd69a79d0b0949a220340cc2da2a118a9086. 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/TCAIJ2424151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35dd954c177a8fa3d9eaabc133910758a6f595513d0753a3ae9ad970b9796a60. 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/TCAIK2424200.