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 0x580913e58c8a4c7a319395e83528b0ff60d4c1341915b9e01c15eff0e19a367d. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aa669db1-5b29-456e-8c54-9930c13f0511.json and https://artists.proofprofile.net/proofs/artist/aa669db1-5b29-456e-8c54-9930c13f0511.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Chapetona (Francisco Allendes & Pablito Pesadilla Remix)
Chapetona - Francisco Allendes, Pablito Pesadilla Remix
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 0xbf67430164dcdbf5f3636b0d6b8618be0dae07ee05a1b0bd546e607ee11b8ee7. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/NLML62300146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac1a79ee8815580e0cc1a6b955986bae709a15190efb73ce9d1769323977db5. 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/GBNUQ2000535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad91357e82ebec45c915fb6d8e6cb1d330c56bcc473932fbbba76e790d796e8. 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/GBNUQ1100449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6599beab6f47f1f4c6229dff94fe708d406e4c7edc9a2dd525565a9d161128d. 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/DEX042000040.
Armada Subjekt Amsterdam Sessions (Mixed By Francisco Allendes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3718d0c232fb1c0df64c3d342e494319959f8900041a696dea8b00f043e9a813. 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/NLF711701605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x559ceed6d52a5027d1544522b41d3533ed496d75327482322ce9776fecee2620. 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/NLF711811726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdddf3e534ef3a4ee9eae05aebc0c7efae2e2183468d423c174d14b58fa0fff43. 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/NLF711811727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5015bb8791e587c52e4f5bfb5172c8fb66ede55c0ee80a5ea93b842b519c3c1d. 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/NLF711811575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c3fb20e09e17893e638e934dab8039dfec4f8ef3e5046f5f2859daf3793c6ea. 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/NLF711811742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b46ccd3c77febed4fbb6a106a3cbf8d4260d7a948e6bad7e2c86ebd7f45280b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLF711811577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a75da797fbb5942071a17d46b0a38dd0846921e3a43b007fb2be73b9c50055. 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/NLF712406200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef55722a023cd361c19b00ab11a3b40f673102597cd4e2aa0cb2cb68d8289206. 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/DEX042400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee9b98972422749d1b8c5a9a5cfae1bd054390ab388baa4958ddb197b96e840d. 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/NLML62400033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe410d8a93acb9525e831def9cbc664cfce1a2162bd52b01cee51575ede514ddd. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/NLML62400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cda2781659957d9fd644a8dd3b63207dc1d6373078640b130aa09489d5de8cf. 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/NLML62300181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd633ee61678a9800d079c7901fbbc2c3d798c3432327f3b63092252cb8175ee. 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/GBJAJ2301413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b7400ede904619378dd958edcc55da992aa3b0632220d5a827349dd4883e3bf. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:07:53Z), 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/GBJAJ2301415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35e7442f2b9b1dcb218f24f80dde4e013b144a40a73b853f4ef979e9ed488549. 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/NLML62300072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cc2615e70d7d402711191bec93968ec701fa4ef7b2039b2d524245a41d96abb. 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/GBJAJ2300423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be4343e500f99cf9344c4f660ef677097cf1575da041ff95e751bcc57977323. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/GBJAJ2300425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b95b602bd79030678a0e3b45ba832c7cfe91d64c81ea9eda7beff6f80e9772. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBJAJ2300422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cb7903b7869a0fc40978bf641986baf2554157d37a87f555c4ba098c9618c25. 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/NLML62300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f9c574d1cba8cca820a0c52ea9f77773ee2cf031cb76eed6243c004e92f8b6. 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/DEX042200048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd79cfcefebb5f1b8f1eb9d7ccb30747c34e55e05e99be7244fb2a3acb98cd83. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GB7NR2227203.
The Difference (Francisco Allendes Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x376312e90daa080ed3fdc9928d35cca1bc2bd1cb097fd8ceb114adedd1ceb038. 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/ES94G2119905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x695b7f88f31c0a8c0111a147531865d4f22e1c060226c5a52ef1a7b620a39d02. 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/GBJAJ2003012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f77ed5bddfbea9789efa05b3c6330a083a41da2a72a74a6ee256ebe5a8e6ce2. 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/CH4481600080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb5240c320575d94a32e6279d37356fbef2209845a56f142eed9b607a61ccf3. 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/CH4481600076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35f7003be76ca008ce8c6e93a31ac33539f733e7e55221c1f335a169ff92c0ec. 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/CH4481600078.
Llovizna - Francisco Allendes, Felipe Venegas Rework
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6271cec9a0d703f1831fcf1b1ec47b631335dfa21ac37c54ec2fa4005adc236. 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/CH4481600077.
Back And Forth (incl. Kevin Saunderson Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe83b99c373b1e324363742cd498e0f4f20bb5ce1894a224c3edf1f66fd0f7fc5. 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/DEW871811032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f624214dd5048ca86bd581dc94beb42760ecd0db5e60c1852e1188673cc9994. 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/NLML62400153.
Toolroom Radio EP743 - Presented by Mark Knight
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f9c574d1cba8cca820a0c52ea9f77773ee2cf031cb76eed6243c004e92f8b6. 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/DEX042200048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f25ca6d686b4f310dbb660668132bafd53ed6341393c6012824bdb3b22d2ab7. 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/QZXD92300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95bcf7cafd40d2d2cb6e4b0f8bb5c7aea73b37e06aee98f88fef17cacce1d235. 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/QZXD92300017.
Donde Sea <3 - (House) [Extended Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee25952ddc066dcaa5aa6e9c8d44492b6881a235bd7249b4ee78d08ffda6ed1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZXD92300018.