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 0x21bb41c37ef7e9509cda34421a6c26ae4552abaaeeea8c42aa01d151d7c64538. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ed137964-34d6-4033-808f-df8ba25eae56.json and https://artists.proofprofile.net/proofs/artist/ed137964-34d6-4033-808f-df8ba25eae56.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 0x3300b0f2631e5b66f0a838d96923d9fdf595557fd74db8f5c36217c82ce04551. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:47:12Z), 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/USHM20962153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5fbce20274a6d15e65bcb6816a35cd39aacbc32c610b39d02ea42a61c05208b. 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/QMBST1581005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4398d596c9ae7cef68966155aab6fd20aec1452c1c9021b43e9b0bd3899f6170. 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/QMBST1581002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b850d73ea38bfd3b20481527b55a717f8a3ef4b08c8ab6457639bd34134c89. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T10:31:51Z), 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/QMBST1581013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x508f4719b223999e28758c9b4d8bf3c16db87e8fc3ab552db863d3cc78d8434b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMBST1581011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b38535546ceee7b3fc20c096cfc7d753818d177bdddacf2bd4db1ee505e3ceb. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QMBST1581006.
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 0x7f34c7c576d2751a01b31a71c1203df193b6e2ebad55d6f1a0fd6cfd07bb8fa9. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/QMBST1581003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c1be5a8287ecdd3568be08bf3f337c0ebbbd088481cc1e76eeaa2616b22e3c. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QMBST1581012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9531814370c25be9c555f2c59b94bf9f66604ebf25c7854e159517e60fc301d. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QMBST1581010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce8e4372fc1b8f5f0807a18505150fba6ec5f4ad692da2548f72a3cb6950184. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/QMBST1581004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd8abcf5590a2171a2ba56219f2f3b6b6eb84c1276dcd47bbe87f360c2a0b72. 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/QM9AA2040113.
You Remind Me (feat. Chris "Big Dog" Davis)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec48355ff4bd1e400d028a54214959ec70d27a76c97d3cf1bfacef07d0e6bc1. 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/QMAAK2380316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee69279f930c6a044a9faede65b9ebdee128593ea2b9fa77eddf86a9529defd. 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/QMAAK2380317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x702ac2042a48995c9b896cbd7d962d7e1a8b7d2e47f8371bf55c6eef5fe5338f. 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/QMAAK2380322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad834a9220a58d15e062348c75ee42c89fddbc4a062d584270cedde01c89bd8. 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/QMAAK2380323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e6bd6b6f081209491b6004160f66440a85435367a791e03f717e9147bb30cf. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QMAAK2380315.
You Remind Me (feat. Chris “Big Dog” Davis)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeafc725b1163fa25e86c18b989baa95fa2a62dd7fb3aa412f97257480e5a611f. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/QMAAK2380318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb9657f06256deab6c1d3fb0f8b2e9372a18d35eefbdbf232b49d018b0cbea4. 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/QMAAK2380319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac7437f22d52febfed4bfa94d679362664c6c937a057eb7a0ef64cfcb8a55425. 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/QMAAK2380321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f5dd839c9bfa18210f186d4d437cd3ecf215a23040889991832ab9bca017548. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QMAAK2380324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x329a96ea8c64ba3ac77fa32663313d5730c065b1ac1694efdb6c56fc57c021f9. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QMAAK2380325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ab50861e961807914dcf4f9d06e5de7903b7008eaa1d46111c57e22121c403e. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QMAAK2380326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451c72811dcb4669940c2a7f3dcba2eae489182eecc34445920bbdd3340a5a02. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QMAAK2380327.