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 0xbd5a0cdc1dec31b9aaa250ca162cb1be042a42167a41538d3181b148e10670b0. 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/7f63fe12-31fa-46e5-9955-56f603b4f307.json and https://artists.proofprofile.net/proofs/artist/7f63fe12-31fa-46e5-9955-56f603b4f307.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 0x38a87ad78951659d184cac954907c174f8d2595fbc072ed342fcaf2798df9a9e. 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/JPVI02200250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d45c7d295bd054dcd9c93b92b89c97f5b3940a0c1b9ada719bcf49f4527413a. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/JPVI02200251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36b596e13283ff7b9af658a254e8d1ed39f935d7cc1220e0c09f9e679b691929. 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/JPVI02200252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x163f9f19b8b19c276166e9ecd9422f855eb1bd23cf2dfa314efc82f78aa8835a. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/JPVI02200254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38a87ad78951659d184cac954907c174f8d2595fbc072ed342fcaf2798df9a9e. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T11:23:37Z), 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/JPVI02200250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d45c7d295bd054dcd9c93b92b89c97f5b3940a0c1b9ada719bcf49f4527413a. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:55:43Z), 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/JPVI02200251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36b596e13283ff7b9af658a254e8d1ed39f935d7cc1220e0c09f9e679b691929. 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/JPVI02200252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ac0c0b84512b81dad283449cf7a454ef78fcb651f1f61f63d53d22f99087bf6. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/JPVI02200253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x163f9f19b8b19c276166e9ecd9422f855eb1bd23cf2dfa314efc82f78aa8835a. 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/JPVI02200254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ec1cf91ef89ec678b6aee96aa8769f1cac8dd7ccfca26f5f89e81916eaefce5. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/JPVI02203510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2f68cbe9436cf3bc6e288a76288bbd7ecbdb106cd9dc7d0f7f992c903066a0. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/JPVI02203511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x948a8d707cd85649108ea8467ffc157cf0bd7de3607ae01614d11d18921e3ddd. 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/JPVI02203512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95c00f5e5e38fb3733fd0c34f9ecb7d31a54c57953b6ba3c09c8340f85f6d633. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/JPVI02203513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x285ba2b02192bcd6cffc4761a30d129732ec70f44b32f64f5fcc5f0d3ff4d61e. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:44:44Z), 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/JPVI02203514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6d291193d004a76fdf5be174e3243523af5942380a1bc50d0c3638e7e73b2bf. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/JPVI02203516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf40a84d7981037360976c222d65b10ea64660dd0984068f97948657abf0ac190. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/JPVI02203517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1906248d3b182228d486b10d1c9ba302a85cd2a74f0f0a643d5393d8f784d984. 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/JPVI02203518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2f68cbe9436cf3bc6e288a76288bbd7ecbdb106cd9dc7d0f7f992c903066a0. 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/JPVI02203511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x948a8d707cd85649108ea8467ffc157cf0bd7de3607ae01614d11d18921e3ddd. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/JPVI02203512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26316e22c684a5896862aff032240807158cc6cd0f4302d24b1996f3df33eb5. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/JPVI02203515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6d291193d004a76fdf5be174e3243523af5942380a1bc50d0c3638e7e73b2bf. 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/JPVI02203516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf40a84d7981037360976c222d65b10ea64660dd0984068f97948657abf0ac190. 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/JPVI02203517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1906248d3b182228d486b10d1c9ba302a85cd2a74f0f0a643d5393d8f784d984. 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/JPVI02203518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc7e0a35e15f6243b83e666a71a0612c110a36b66f1db7e880c9ec1795d26ea3. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:33:59Z), 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/JPVI02203509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95c00f5e5e38fb3733fd0c34f9ecb7d31a54c57953b6ba3c09c8340f85f6d633. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/JPVI02203513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e6a26e2b157059c771029cab8744e1f5ba60ed73c28805e598960a4b8210109. 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/JPZ922310835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4c019172f4a1751ee7cc3e43d35d57a91f8f81724f51641180e6459741e8f9. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/JPZ922310837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4c019172f4a1751ee7cc3e43d35d57a91f8f81724f51641180e6459741e8f9. 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/JPZ922310837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc74f7fb6aafad7a87da467076573340ae877fbd8630d615f0a2934f434a05371. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCJPC2480577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc74f7fb6aafad7a87da467076573340ae877fbd8630d615f0a2934f434a05371. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:58:04Z), 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/TCJPC2480577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5244eb6397db9a9bf35615c3530bd744e16fde0b7455622615491572ffed5524. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/JP92J2402447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x882027bad0a1b3510dd279444e3a471ea41a13894cb21c101e443de4f8a0c90f. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:02:33Z), 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/JP92J2402449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb522efb13dd78e9a1457ff1f45adfd59f717b88ca0f48c2ccc77bb65bd19d70e. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/JP92J2402450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x306f2b3fdb1994f4d16e076df05fede6ea2563e39727645434a8bfc34458c6d4. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/JP92J2402451.