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 0xf1068ddca63088687bc3d49e617ef67ba619506c13fdf7c0f6466a23fffdc8c1. 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/8070b7f3-851b-4e2d-af17-31e3540b5242.json and https://artists.proofprofile.net/proofs/artist/8070b7f3-851b-4e2d-af17-31e3540b5242.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 0x00e19c222e5b9d0465f1c25327b845d091a94a691d36f57fbb4bd1f0ea4ca474. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USCGH1975360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bdf4855e910a1b9ed9e814efa35434d358314972da3bc489a00b4f1f92b92d1. 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/USCGH1975362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x945c241e6cb647ec0a90c1c59aca670141747693fcc1c53fe4438945cda4aca8. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/USCGH1975363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9325c357dd78607c4eecceb0506a508130f94efc597a2d18131639ee9fe2c39. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:41:30Z), 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/USCGH1975364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c5f70fc0611f2110b275ca8d15429d1d20ffb4ef86b99c3892819219c508b2. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USCGH1975366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5988f6d5f8ffcf9500074e09ed3e73ce73a90fb639c21de5fe5eee27e980aa3. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:39:31Z), 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/USCGH1975367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3fa845f9c1fcd66fb13afa7d094b1217d2f36bd046202e88e43951bdc19800. 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/QMBZ92041664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef5463c5c82e32dfa94bc18659181ed223a3048a9625fcbd8b1c05edd7d93b0. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QM4TW2136287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac2518798b0ee225cdca467f390c5b8b2ee9142b6cf0f2ce1b33b233d11198cc. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QM4TW2136292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308c59fbde52ba9c96087faa0b732eac9cb3621ae11385af79b32edb965502e2. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/QM4TW2136296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf70e7422a364d008df4261b651566baac57bb3a9f99091a6b9db4832ca2bb8. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QM4TW2136286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf65b9fb5917c1a3a9f7ffa0b156063b443a4b26e24172f560dd2400fbfd77afc. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QM4TW2136291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa64c6b04f52502ef3402075eb4f015d9b1b9fca6d414362d533fdbb6c4806d57. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QM4TW2136297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x056c4a621356690dce8d9e3e45f3db4669482cb8ef82c5b47d32902d8e0ce973. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QM4TW2374843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a1e2de5c893b7965ab859bf8197b3f2a34453e3700e0f184dd64250d62432e7. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:24:27Z), 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/QMFME2304823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5962d001befc3efb725957fdfb776d465f24ac9072dba248985c54e4c9e69848. 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/QM6MZ2461713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dccbb4d3a2162d7aedbaf24b9eb4bd5e57318145d2e07894bdd9099236a5af9. 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/QM6MZ2461715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x300ea08395a6d5852dd724c7368610a62caae9f4b00933517399e5af9b15e6f6. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/QM6MZ2461718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b96840d903048b2c2ce9df20de304897f3777b5dc1c516686d1f14c3503f0b. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/QM6MZ2461711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf936f1be596751041e397e5966842f2980fcc47bf206884070a5bae07d65c720. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QM6MZ2461712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6650790118dba254f9786087a147d85abc131de40e92f440bd90b13307d7dd70. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:14:31Z), 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/QM6MZ2461714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc46d1c8397860006aa76fb875a69bd2a32a06ea9be1bb98b7a1dee789d7bb1e6. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QM6MZ2461716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d4c05b4493f8a6f6012a17dec7a949ebca34ef1d56d00a7a3c5b14f4d81acb7. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/QM6MZ2461717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd720f17c90488711e3154afdc4f6b6c15960993b6c68dd9d79d31d49d7f4267b. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/QM6MZ2461720.
Pop Compilation Vol. 1 (Live at Sugarshack Sessions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1001f1bfcb5cc2e5a3b567b317a9c34936ab88b78b46ae113c1604c57d433720. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZ5FN2259485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b0e619c2f7b8d9bb2797e91e65118539f6f4353ffbde99a55a5f296e124dc7f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QM6MZ2461719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5962d001befc3efb725957fdfb776d465f24ac9072dba248985c54e4c9e69848. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QM6MZ2461713.
The House That Bradley Built (Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3fa845f9c1fcd66fb13afa7d094b1217d2f36bd046202e88e43951bdc19800. 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/QMBZ92041664.