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 0x3deddefa4465f31e39ce1090cc4936dc4cf569b3a55979cbe1b9737230582a21. 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/f3b1490a-8f3c-49bc-855c-fd48258a5355.json and https://artists.proofprofile.net/proofs/artist/f3b1490a-8f3c-49bc-855c-fd48258a5355.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x250aca502c31602336f3558f05fd3e8ba0223f2e5e0eac29207f80c4b165563f. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/USA560445014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5cbc74bded48ce4929dbd3a8d03cc73a77bacaabc1c40c8cf55ba6bf6292d79. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/USA371002420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb1294b9cbebb525a21dbbc53a6748020621cebc4094acf6919fd49bae46a641. 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/USA371002421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8530841f84674b313597ed92294f9fc533288abac9f41f3a30c7c37b3b9b2480. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/USA371002424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72747f71a806dd0e58486a0d85457ee191a1377e55b5eb086e7792f37561031d. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/USA371002426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d515fed42794841eca7ccaabb439d32d7d04eb6bcb7701efe9c78eaa5680257. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USA371002429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7135e0baa2f03a90c9f3bd51d88eb39d4a343bfec845f530086c6da3bada6dc7. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USA371002430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b046be6bca8dadc7bc639c026d8588d215c011ce9a21b5be6e1e349ee74630. 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/USA371002431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea6540f52a15a023c0c633f98a59abb108bba2c43a521a8b4d4ba129e15e2434. 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/QM9AA1528581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d7c2843439c92c4cb4d387b9676f644c973fc5dc7437d9cadb9560a614354c. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:52:09Z), 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/QM9AA1528585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5995f0638bb6431b9c19471caa38b6dcaeb2c9dd79540f1e9224ae1b04dbb6c4. 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/QM9AA1528590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc8edeb4d0fad1febdd4f5e1aca86122e4aa24ce6b46cc169666750bf9253fae. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:28:14Z), 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/QM9AA1528593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5b2252d5049830d285005ffc68f6289d9c1496c864619d7aa4840bd7997d9b5. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:07:37Z), 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/QMEU31724715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e7e9745c177dea4535e1414667288856f5ef753d53062e937f239c4284f12a. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QMEU31724717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x053cd1c761625a86aa5db40389c46307ac415ef03fd401b944677c087ddd8b94. 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/QMEU31724718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7620e95ade5c40521e905d9a3d9a6321842244b1125c9999da3c9c9e35640187. 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/QMEU31724722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe735d86eb14d3f7ae2dceb49db8a9bc54bfb08aec59e2940efc612b181cbf3ca. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QMEU31724723.
It's a Great Day to Be Alive (Radio Edit)