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 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 0x56ab61c821ce36a6f5d2089f376f76923c962130e0f8424864591f85e39f42de. 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/4a0256fc-7ef9-4571-bd63-397152f00913.json and https://artists.proofprofile.net/proofs/artist/4a0256fc-7ef9-4571-bd63-397152f00913.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 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 0x9240e5e0c7c4de4e0ab7bfd42d0c247e8bb026dba73e876f69a189240b664986. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QZDA41859545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fcd7ea238ba895544a7b813e73ddf8ced3bd17462ce4dc520ccb3684e46a41c. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/DEQ021808084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb956f76be1f4d3f8ca5d72a4c91091a599401d09168fe7ab267dc53a271fbb1. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/FR96X1616994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc94f5b5de49053049d4b01b19c64ce324d7d2c7d1ff6752fc4abfade44d5a062. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FR96X1616991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbaa3a5b19fee60085778c772abd7b3e4efd1785f9108d442846d186f3145d0c. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/GBKPL2014315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e692eee11ce251f74a82e096eca62ef6143185a30eb590f5a86026e65bc62ff. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/DEQ021903455.
Nuit des To'eres (Live at Brewery Studios)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67374a906fd6ba6942271073143a3fd70370ba1a0b5efc0ec40a337f5010bc21. 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/DEZC62104570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6441c48d686de447cdd2d109d7ed8215aa96aef219403b22e746fbfb8bd47ba4. 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/DEZC62104571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64043dfb2c68039a9e78599df0754407e1455182158eed3e873bd3d02a10ac0f. 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/DEZC62104572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee6ff7180536918608249dd2fff170e84766022bc7deb70d84302cb14109522. 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/DEZC62104573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5903ab6c782cce5f4724929bf17491f95158abb3c6814216b8acb897a68d767. 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/DEZC62103957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x879ff4495dba1af98b37bd72f58fd0996523ea522b76453ad49a20d08ca503d6. 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/DEZC62104574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1754addc16cbfc78f7eb75abdd289fcb29a64630b55526dee437ea39da0b4f5. 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/DEZC62104575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa245af4e7ed5ed0299bc2fceeaeb773a6c19548507e99279887ae99e9a0c6f. 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/DEZC62104576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x027c4607c9994e62b191fb6e1109b4180d06598c9bc1348a2a1a5383b6c0c239. 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/DEZC62104577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd525496f9d76fb56e6e019ac3f01b3962e16c8fa087e1af69647cca179feed54. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEZC62104578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4ef231c2feef51b1da42f2cd21c9b750aca20cbe390e32cf1fbfaacdfa0f18c. 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/DEZC62104579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46576e337199b46cd705c58c01a6102ced76ee55c0a47b6367fb5c0701b3b6d8. 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/DEZC62104580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x449bf21728ec2fa49a6f6d00be10e33c9863436bb62ddc221f1021653214da99. 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/DEZC62104581.
Align (Energy) [Benjamin Fredrick Vukelić Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69afadd70803cb36d83b3818dc7ac0e05d55861d77a0ead3864081a11d39b319. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/FRIDO2410753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a22786b73ba7a65a3234caaf5bb44e09cb3742aeb9395da66a7e96cd2f3830. 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/FRIDO2410756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5138134d5fddefa9af4b948406fdb4df317dc6aba3597dcaeffac8cc21ac38a6. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FRIDO2410764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940beaf7f60334c2803a9fd807fdb9e2d76e1d20d4138aa35cd3f85f806cf355. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/FRIDO2410896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059f13a7e709611733cac46266d843f546f35bdfd4c30164b85e82b8c5ee9951. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/FRIDO2410767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe435b7fa7a4471318f347861d4eb61ac59e42cd85705cbd1312329c284a3761. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/FRIDO2411086.
Gyászba Borult Isten Csillagvára (God's Star Castle Has Fallen to Grief)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe83d747a65d831973e83de5bf4e8abcf7bd943960aa260f5446656c62c64144b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FRIDO2410772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06a385c3930393c661081cab7f918e8293cd4491c8b1d847950e1a66eb6d24c. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/FRIDO2410798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a024b917d49b387eacb3e91ef25c3be157e37bf4aeb992415d671a193749421. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/FRIDO2598826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe435b7fa7a4471318f347861d4eb61ac59e42cd85705cbd1312329c284a3761. 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/FRIDO2411086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0fe9c9d1b30ae73f1122e24e74d813088d6507a9bad1756d66c24288677c841. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FRIDO2512532.
Destruction Everywhere (Sundé's Clover Edit)
Destruction Everywhere - Sundé's Clover Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf41adf1a5cb4a2ac4499b5647fb68a60c05e8c2b9faaf6a469870aca57c3df8. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/FRIDO2513016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940beaf7f60334c2803a9fd807fdb9e2d76e1d20d4138aa35cd3f85f806cf355. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/FRIDO2410896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0049c590bb54e1db4ee80a44362b51610bd0df265014f172f81548c19c29130d. 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/FRIDO2513166.
Fidelity Radio Club (Toy Tonics Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c20448fe26149a08e0799d62e9736e41e2dd52f1622980cbd8a34614a8781d. 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/DESY21401300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d6e60ddc06ac7043fa34d6084f86658af285047085d40cbaf9e50e3cbd010d. 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/DESY21401303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x154bc91932933ae91e8383527cbf18547811b41e592eee7522df67a414925315. 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/AUH9Y2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c69513c4bf0c71a832408b6db21472751a5f15860465f33ebd90e15ca99cd57. 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/DESY21401203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87ca1590b26847d3d6678b73e305e9e01066119fb09071b26adc10013831f6a3. 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/DESY21401212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc12392c72b0f35e8f039713866f7a12c1968f44b21e19925086a25d7c3f340ff. 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/AUH9Y2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d870cc606efc7f58859a9e0dd3ae0d1e0d3354b53aa656fac68e2b74e13e3b. 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/DESY21401693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bdfc9694a3ee0959c722e419e796478bbd559968552610a37ad267051fc4755. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/DESY21401694.