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 0x04274ca880372196a02ac96ce45156fc7af6c0a294518a83147d952596ad4822. 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/6b0d137a-4dc6-4681-bbde-d2d1566612f9.json and https://artists.proofprofile.net/proofs/artist/6b0d137a-4dc6-4681-bbde-d2d1566612f9.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 0xbb47ffe4ff6f76553b6e1c301852a16552dc79ed02742cac528c0c0f14701f17. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/NLM7H2300027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf487cfd6256250abbf08eb5e70a5275bec0171b839f532759f02e1029d14bf21. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/NLM7H2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae3e462a12f79aef6303fd95cacbfcaabdd08962fd3fbdef5c736a15e0f1d4fb. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/GBIGR1738001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf295a827518ffeca1874e6b731be42b0f2e0d9202697a4eecc8d72c02ec73256. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/GBPRS1000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa123a1c661f6fbbf135c2d6cf6ce03c9fe98531abfcf2af31de77d52372bb543. 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/NLM7H2000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce057a3ded3a42facb8589dc5273ec1debde22d356276bca024daa6a207ff923. 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/GBEXH1900318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c4df845b3d8e3a6844f8fdfd397e58f67b25e7cd264f968e738e6785e645485. 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/NLM7H2200062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x696d1f6f9afe97de367643b3ce0bbc99f4fe6710d20c92c513b1b0d937fb82f9. 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/NLM7H1800057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8260f8ed87497fc0af7d355173c00e39f00ecee43db50955b38857544a9731c4. 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/NLM7H2000038.
Planet V - Drum & Bass, Vol. 1 (Mixed by Bryan Gee)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e86f3a644fc41a4e1b05106267a073d7f287c696551bb8375d468c27ffa178. 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/GBCEQ1300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa123a1c661f6fbbf135c2d6cf6ce03c9fe98531abfcf2af31de77d52372bb543. 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/NLM7H2000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f0e512128a29a953f71016cc09259fb483272ec1c8b6704ddba294907375256. 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/GBPWR2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ba8d7e6d76120e8e50853e0f4f59854f6d502a35cf7ee513a5d9aa08e816be7. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/GBCEQ1210228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa4d51fb207d4e9e4aad3dc6636feeef81416ce386d164bd8e19d9bf2e6c548d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HKJ962101530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x468e4e86c111c2fb15a6c2b7b50e1b78fa6d93ecaf5437db03f5f87ae35cc75a. Chain 2 (Bitcoin): anchored in block 957034 (2026-07-07T11:52:37Z), 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/GBKQU2342965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x696d1f6f9afe97de367643b3ce0bbc99f4fe6710d20c92c513b1b0d937fb82f9. 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/NLM7H1800057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010e81cb19e4d88f4a6b9785c5859048769e2ecd2b1e1b04338e7ae01429eae2. 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/NLM7H1700040.