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 0xc260d1cb3bf0464aab5a520f9830cdea934deaaee49b0866fe726cbcd38983ff. 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/c41b209e-32e0-4447-9ccf-1b1ec0f1128d.json and https://artists.proofprofile.net/proofs/artist/c41b209e-32e0-4447-9ccf-1b1ec0f1128d.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 0xfb0614906ae85a87ebebf3205d3d4eb2f4b351c25b2d20434f4e1b335e3c6308. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/GBKQU1520235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x664da9b184ad285f98ab657c6f7d4ff20cb7c933c91df4c18774a876d6c55430. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/GBLV61615204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc6d67c88e524d39a05502250521487fbdbd338c2610cfc94326f69016de540d. 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/GBLV61631348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf85159f480d001b2660f7a6596ede46d2be5c2f31ade728214df7cae5345f20b. 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/GBLV61631349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x149b5386cd7eddd81c48bc3e4de3c35c62c0f866469a8251b5298457e141af11. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/GBKQU1709064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d687be923ef54b5bd9c244e0c2eabdd82baed9ebdc7508c78428664e630f33. 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/GBKQU2113525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ed41bdb816f42d7bb753e741f729f13fa35a72fbfc7776b8620426e6907344. 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/GBKQU2113526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x966a189c5ef4b1316b0d9700eaf532236a2d5bc6d2424600fda83c1b6f2a7c19. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBKQU2234925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f6fd3c1309347191d86c603720e569470965d51570143c3b75d8774d4c2a86. 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/GBKQU2235566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19029edaa781066ee408a8067d34a6bd295c1ada6877a12e71ea71554a0640fc. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GBKQU2249027.
Heavenly Love - Cafe 432 Bump Remix Radio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff3f7425c3614dc221a2271585e42a573a900ae709dfe89309ff4755073c42be. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/GBLV62208667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d21fa37b899dbd32426c40732d6d12b1cc1c1f0b112018d71316f7eee851b65. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/GBKQU2318526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87af2159e0f0ea258f929e70541f553fad0c0db2620874fecaa5593c0515a7bf. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/GBKQU2512228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x599d3c5aa4a00caa2aa334d600b49567bf8de4e6c436fd50125c17244ba0c63b. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/GBKQU2523701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb95c3003980f7143987a09092026da99c6674c6350dc0157b46bc5b31dcd602. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/GBKQU2523702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c1f175aee5989cd2a6d08b2455972d99117456eab4557fd49f3ad34c284e541. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBKQU2540664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x655ddbc51c3c49594e1e8cf3eff1cc68c3c315b9a346e12b22f7f293943e0954. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/GBKQU2550523.
Shout-N-Out (Cafe 432 & Ronnie Herel Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932285a04ce5a568fe7a5f38a8e402d4a8db6bd8f59e2841eece15f74e4a5528. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/GBKQU2580232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28c43dddb15cffbac56b84b54c82a3611b66980a02bf8fc82d790016bd34231e. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/UKF4C1603936.