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 0xe3ee6e48de6e160d6f470217b066e58f9b55b37cf16978ce7e2dba02769c17aa. 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/84a8fd26-dd63-4737-ae33-e10430604a15.json and https://artists.proofprofile.net/proofs/artist/84a8fd26-dd63-4737-ae33-e10430604a15.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 0x8b72b72efca49d09c11565b803346b668061df89a49777b919010cf3e156b616. 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/FRX451576797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb250aa9ef523eb6c140e83ce2c0de9fedda37c75ca9b6ae44e5b62d468646a2. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/FRX451576799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f955b473bba5fc992622aca84de2533046dfcc8d98454609b6a84ab4a481970. 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/FRX451576801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14ec7085d052b0d1bcfba206498adad9d348a514517a47b9ddb025b1aa47dd57. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/FRX451576807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50c5b70d92553844ff1e953e65ed6d109d61484b2d3a9a7580eae379de4d5e71. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/FRX451576813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b0dd87695640eabea70d83acac01d876d36d602f1ef1a3d778c5d690dae330f. 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/FR10S1677889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3bf46d64b842d01bd99f1fef2eda4eca89e5b90b2cb69e18c24c1ac402ce3b4. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/FR2X41622946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f6d80f90da73c7b9de009d276356b42f5e65827946d2742a83600e0ae61bda1. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/FR10S1794820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf95b070926a04142d080f9b82529f157e2b026c087e4c1fd84d78b9d77b0a01a. 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/FR10S1794822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa72e1231404debd7beeb27fa6d0d14b153c0c4115dac1e61dc6c627772bffc. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:30:37Z), 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/FR10S1794824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cc691a3796e1b28243d7d65ca7e383389d25ec0bc5558c2d8be871b94a614a8. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/FRX201716256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff3211b67971d207503aa40901606dcf827c50d424e0b0fe420a6fba8066bac. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/FR10S1871740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a6ce3f5f380d1c706b00069eaee9f82ea554cc64d2792c4768c32f4ecbe4728. 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/FR96X1843354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc06ccb28c316465be10a450b2cf9ba9fe4f6078b0a141241e54f3a4d5e77ed84. 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/FR2X41939730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fdf7c012649a3f81a07075f1ea07102ef0338718907f0d0a873c06a447b3be1. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-02T22:22:35Z), 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/FR96X1913801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f4ebd6e637ac179921ebb1fa44dfab18d312a958f0963c5265c4aa9aae99340. Chain 2 (Bitcoin): anchored in block 958204 (2026-07-16T00:24:29Z), 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/FR96X1976517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e60d8fd92449b90d3eca6f72e220ffad868ed93529f07c8f8a7728244074f1. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/FR96X1976519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7759da0823e5faa872010a0cfcb0fe9f56354d59cdb45cb441fa432f07322e0. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FR96X1976525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x438686a5007e3aa3677fa6b0930d8ba25ec5e11899c6b906eef13d17a2dc8c38. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:33:39Z), 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/FRX452045961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6516930b325c67552284b88e8c786533ed1913bc29f0f833e1484449a1992573. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:36:27Z), 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/FR26V2056465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74b621070a9d5d6c9050a3666f91b871a54bb3db587f22ce4ebdd349151ac14a. 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/FR26V2056467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf49e9688cff7064c7cf16880b2524237d96a475d006c795b6459d83944240843. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/FR26V2056478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x941a03e8ff48c0a62a466dd468861ad69e90ae8c7422ef320aa73854b15f8a77. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T02:20:49Z), 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/FR59R2194101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1dd5ef22ab90430f2e76f62132204f4ceaa303f8efaa3bd67a669b75dc21169. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/FRX452110659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7636a6d2cf10baf85b707aba486834207c6c1ca49b1d912bd3961b5074f8c3cf. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/FRX452150702.