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 0x43903e851d0c8551c924bc4984734ad8135617c8b67bdd3a0941980bfda9307c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7aa19801-cc99-46b7-a9a7-ce975cafd28e.json and https://artists.proofprofile.net/proofs/artist/7aa19801-cc99-46b7-a9a7-ce975cafd28e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ff1d66752097b33f88211e1abd02bfbbcf605d85a7bf3b7ab1d372d0de56e97. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/51VRYRP3caA5er15c3kdme.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/51VRYRP3caA5er15c3kdme.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb80ec4b661e38b6771877ce227a8bd65e0b0fe44988f2d3a4820286144d6fe7d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3ipNw7q17syJU4eNWkeUv9.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3ipNw7q17syJU4eNWkeUv9.
Presentation (with Nick Hakim & Benamin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5fb6f3f8dd8b280f01abbec1aaa7834d8eb283156b5f31af1b70872807722d7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3UNkO7JYPSlGCig06HZD3f.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3UNkO7JYPSlGCig06HZD3f.
{"copyright_id":"0x76ae7665f6c1e8a1bc77aed501fb913527980dc7ce2f3b29f9acfa81bcbe688c","isrc":"QZS7J2338253","name":"What Eye Became..'!!","registered_at":"2026-06-23T03:45:18Z","spotify_id":"2M1TpjBJj6cH6c62IwnfYJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ae7665f6c1e8a1bc77aed501fb913527980dc7ce2f3b29f9acfa81bcbe688c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2M1TpjBJj6cH6c62IwnfYJ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2M1TpjBJj6cH6c62IwnfYJ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe568b296e78f3696596b5e54b11ec52e4d3ae79d221a8385d12c340f133035da. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2hT2Sdli83D82cMOGzF6pH.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2hT2Sdli83D82cMOGzF6pH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0861f120240a428e80109e5e73f57bc12baa844c2a498bee960131f6d77dfee0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1bqPyeah2Sx6Mmkg5XOJsG.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1bqPyeah2Sx6Mmkg5XOJsG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11ee39af0c8654bd31526eaa4d198d00dd1b45b0c3905d0d86072db737d433ac. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/04JlS0JHgNrhm7gKBz1zT8.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/04JlS0JHgNrhm7gKBz1zT8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c0c5b844ce63fabf3f3074d96b7cb5e614d6182e4021faa4123afb45197dde5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0wCKtvdUldMUH4ZK7LsTfo.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0wCKtvdUldMUH4ZK7LsTfo.
{"copyright_id":"0x11ee39af0c8654bd31526eaa4d198d00dd1b45b0c3905d0d86072db737d433ac","isrc":"QM24S2105383","name":"Gumbo’! 4 tha Folks, Hold On","registered_at":"2026-06-17T23:20:39Z","spotify_id":"4SE8Mu1AszIHGL9KgyQZZZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11ee39af0c8654bd31526eaa4d198d00dd1b45b0c3905d0d86072db737d433ac. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4SE8Mu1AszIHGL9KgyQZZZ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4SE8Mu1AszIHGL9KgyQZZZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c0c5b844ce63fabf3f3074d96b7cb5e614d6182e4021faa4123afb45197dde5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3nT8D7c2Ecne8QSDBqjbP1.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3nT8D7c2Ecne8QSDBqjbP1.
Tales From The Telescope Chapter 1: Rebirth
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab86cd59366294df9a6e1d23e8ef522b61a87ed642619f0c26f7ccf86227ab42. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6wzK1U8zRaROjf3hFwJjCY.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6wzK1U8zRaROjf3hFwJjCY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab86cd59366294df9a6e1d23e8ef522b61a87ed642619f0c26f7ccf86227ab42. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0c8BI0l9Ar2p5OhMytfpWz.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0c8BI0l9Ar2p5OhMytfpWz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x271b6b0611e998442235ef7968deda362a64ee3b387f431700a3c482a95894c0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/57VDhn2DUPl1rXuQF3bvgs.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/57VDhn2DUPl1rXuQF3bvgs.