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 0xd32a395c2da6689ee02ea33d2cc1a29197bc25dc15ccfdf58d416c68cc0d0306. 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/373c9f8d-1e01-44da-83b1-121103cebbfc.json and https://artists.proofprofile.net/proofs/artist/373c9f8d-1e01-44da-83b1-121103cebbfc.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 0x14fcd63e0874cd3598d511bf9736d06c4799dc8ec231f46f584ad906536b7b7c. 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/QMP471200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ed28aaf2536b82418c1884f4b9d1592d3cd14925e431bb385c1dcbd04a1187. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QMP471200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83de237792ca02f3030ede9e7318ddd3716f93c7b50ddd6da08b810895425bbe. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:09:35Z), 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/QMP471200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96f8b6b7521d7b8364a886e6575003c7b3c8b56b417c21eb583b75546683940d. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:18:08Z), 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/QMP471200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe24db8e1b468bf7abcb4aca35f67513f73261aa74f766d898c7250468b85f2d. 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/QMP471200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x379cfdfb854eae039cfa185565c0fbc4b7d7ff47454a6a7aec84a8d7c00b46f2. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T16:01:11Z), 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/QMP471200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55441eff2ea74f16c599144a5e9d74f57acb0ced79e879766e1a497621b9c415. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/TCACF1552041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b6cfff129619779cbf907e9b64b66e0bed5044e87fc9811adc9ca7a0c0abb43. 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/TCACF1552047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x631d3d9b602b0e8f130997e458b6346fd359db9aeac751bba2c8d22193d6e691. 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/TCACF1552050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247d3cddf2b714f13c6733c3d6e1160aefd615ef4b0d7b6e063ff79f1476e255. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:29:07Z), 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/QM4DW1669255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1f2d9d8ccd9460cb07c316bac8fa0c6a78e24cdff6d4cff685049d13c96e8b3. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZTBA2466852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34fdbeddd943bba9fcf0194853e3a76f9622bf0d58e0ce40ec21561046eea4d7. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZWFJ2450717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f6b9e6a15f0df05c85ab1eb66dfa21df2da19355cdc60c4abed94890acb0fb4. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZFZ22506379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1f2d9d8ccd9460cb07c316bac8fa0c6a78e24cdff6d4cff685049d13c96e8b3. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZTBA2466852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49f1f5b6a14d5977aae68fe5ff410cfbe4e8c70b3387aa35cd15457f4481c3e1. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZWFX2499616.
Magic City Hippies (10 Year Anniversary Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec910f23b92581b2cb06cb351dce69676233462a1b287603b32a235cd8ce2f17. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TCABP1354830.