1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xa8c037e2090d4c506f3d602d8d2fcc6670488988982aaba7138d56fd92539066. 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/59acc597-3616-4c7d-bbb0-0e7158ecb6ec.json and https://artists.proofprofile.net/proofs/artist/59acc597-3616-4c7d-bbb0-0e7158ecb6ec.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 → block OTSBitcoinBlock must exist at that height 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 0x1b41c4d77cb618b3fa4b2edbb72990064f30905ba8e7abc6c3804880e4010dee. 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/QMDA62422401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3220056543c98d32dd060b2d7130a21463d118dc65efa3159bfc8897ab5680c. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QMDA62422503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aa1f9337f4000c47c0b7cecc4ec50eefbee9b6d1b5f5326d02b21ee2294483b. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:19:51Z), 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/QMDA62422504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76516bca51b58717eca61e1c48d2caa1496e7dcd6d14e539fc22faa96f1d17a7. 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/QMDA62422505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc036af08d86ec57abf5857032dacc4d846ef18a3a37c903835b92fcee084e54. Chain 2 (Bitcoin): anchored in block 958678 (2026-07-19T05:59:57Z), 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/QMDA62422506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5732e955ff34024cef7c0affc74110d5909286187434e61d5ceca9433a6209eb. 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/QMDA62422507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4226a4822438369cbfc9dca9779247c8e941433ec5d8b20febf7253d14e9f67b. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/QMDA62422508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd8dfd3a1edb80aa7471f50af9a97f74e648026bc21dcc31ff33f76bfe71b2c. 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/QMDA62422510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839a6b22af765c1f6ae4cc2d789d224fd0199a58c1f6d6a0f4d8a23804889f85. 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/QMDA62422617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebdd82ed61453316e24d2403a6f2ef73e1e3d5c3c4384c495c9364bade59f958. 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/QMDA62422620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e5c1d1ae9949b1e5049358a562788c4a3042c7334ceb4aaf347d53f3dc1ed27. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QMDA62422622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600e76c14b910a67b763aafd5c31cebdef464a452ff5af4df6e180be2350ccf8. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:15:31Z), 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/QMDA62422624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe34d89ebc9960a77bb2fe033e5f45bd9587c894a1b137663cecc25bc58e95a3a. 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/QMDA62422625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1075a1c4bd191d444b072805bae94b7fea2d2f75ce0db2e65a0130c6f08ef442. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/QMDA62425125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae0c46ef1e28b24c6dfa4d19bdc7feb2bb94ba135c6083228aa256c37b0abae2. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QMDA62425126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab7c40a785682ee844eb748f2e51038bd054726e4e4a1bea1ebfa46ff968335f. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/QMDA62425128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63bd6e191c3365355be8e1747c7c0b0be28c9c5d3056bbf7944c865e7800e9a5. 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/QMDA62425132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf3341c9fcb1654a45f50c16dd8193e7c8376deeee11697d4426f3bab2a70bff. 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/QMDA62425179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd868121a216f48702879bd4c2e25a3327f9b6383b4158eb3897a99cda803396d. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QMDA62425180.