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 0xa7232623f44aafefe266f8f7b4f9d55fe7725a8e2be5f069577e805585a39716. 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/d6d31983-1dbc-4f89-add4-83869ddcb3ef.json and https://artists.proofprofile.net/proofs/artist/d6d31983-1dbc-4f89-add4-83869ddcb3ef.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 0xaeed57c69a84e71ea6b4a9e4f1ee37ad7ce2c12b4a18cb60fcef9964b4ef27da. 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/FR6V80135022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92e91dd436ca18ca4f4666955906a233cc56372f3f47c6cfea4a613ec78dbf4a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR6V80135023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17dad9290e938ed393c2d32a506881ceddb438e493c5e0e8a4e1cc1b81c23cdc. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FR6V80135024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x384e0c7ef5d025d0992b13decf810659003c6e0bef455354c148ebb25f724382. 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/FR6V80135025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71ec2c391f737cb376e53b0602f335c943697630e0668aa5b63b8e9ae0384efd. 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/FR6V80135026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5693bc46b8ecfd12d755717ce439c53c81fcf2e91e3262364fbefaf3249044c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FR6V80135027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33572bab90f27ce6a7b6a90f84ce96428541311275dbef16e3514d804caca767. 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/FR6V80135028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d530dd253e5b0271f0bb8f1bbeb4a4e33a60f1e0a18dc4c188f5a56c3c020a2. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR6V80135029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f006584c3f1734b8fec0f06631beb7934e040f58a23262f2689426b16190afe. 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/FR6V80135030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6905cc58855780eb3e188d7a8ba4823e555e63e3d8ceafb6129526a16b6c962c. 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/FR57T0812801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc36c2ab158f3a4d8710ea20c46392e572659537ab04659f4e98479788d4a22c. 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/FR57T0812802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81dbda1788091375266a27fb870b575aff7a5a4b222ce1e53a244dc4daff2250. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR57T0812804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08813b52da6ae0ff732349bb372c57638bc3a789d7d017fbcbffcdacc20ac25b. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/FR57T0812805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ff2e1e7b81ed6470ea878b68ed9000d6a3ea90b62e3bf3306db94713d4e8544. 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/FR57T0812807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9880ad4c1611f6e0768899ad28df998286fae8419a86d49962f3809174712ae3. 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/FR6V80724981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7505ed56c1cb255bc72b966e1d563bc7be01f35326ccd3574adf4cd7da0dbb2d. 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/FR6V80724982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c604d359172c89a465e9d31fc4075203023bf6dff5bfcd807bedf6a7bf8947. 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/FR6V80724984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc974a0984b855f95b0cc1cc11082ec394059aaa04d475a05a2e86d9aeac294. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FR6V80724985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d2e39d8df7c2f42bcebfcdeefd468825bcbe4ea6e36ab4283a7527be0a93360. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR6V80724987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x034fb34830060c04b9d33a9cd26b10154ffd05934f21ce4c8e3b8b32a737d763. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR6V80724988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x166abfa204a451ad4e8c9cdc77b6078671e2e8553c0a638f35059e127d1eeb76. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FR6V80724989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d45e21256fe12bbf7c2800703d8c5aeaae721902a06016d04ed6b8e06a3642. 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/FR6V80724990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58003bfbe635a9e9a0248f2995387203e49de9218cb6b922c161fbdb55ab7c6f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR6V80605661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc08c441827e7b1c6d0d6eface3952936b3b0bdc2b74f7cb27906da7e1d205fda. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR6V80605662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07622760a861fb3ad06f35963c531bd52343197625bf2ab023c92c0c4c08d09. 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/FR6V80605664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb82f2d4372a29f5ac702b2718a094eb1b4af93d19bd3322888288921ff92a172. 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/FR6V80605665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde8487ff4e8d870a3b784f443b2f499790c5be785b0ed8b5d7dff736ae66a794. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR6V80605666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f4593cddb86879151b7ac53dabebb2ba9a151454ba1484c0c2445ea416195b. 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/FR6V80605669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecc282ecc950d38e2728c8c2f446359d596bf4e3cfe662a8caa71136d49f974e. 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/FR9W12203023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaada19fb7de3c5e7de0a10a8042dbd8623503397139ccbb1b68f6867b808473e. 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/FR9W12203024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab0a963464dcac4ef62ca5f97387bb27afe67e93777b76acc8aa59f44b1490e. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/FR9W11708325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3c8cc13f8d410b3b4fc5746af18f877283d5af1f3a095f2f03fb45a87161f28. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FR9W11708327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc8010fbeae2da7e57f727bc89aea8c2131e18af2ab560903dd34a480b7be39d. 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/FR9W11708329.