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 0x7acca4f798bbb3d6cf06f36641e5e20d01ab35817fd2064e8b6ab479b48f77be. 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/720f26e2-f0ee-4717-a773-c5c8f6b45170.json and https://artists.proofprofile.net/proofs/artist/720f26e2-f0ee-4717-a773-c5c8f6b45170.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x1022db6e66de8b7b261a7dfda944cab46e4b2f720f859a064dca1eae4eab8eaf","isrc":"FRUM71800315","name":"Pas de boogie woogie","registered_at":"2026-06-19T11:38:11Z","spotify_id":"5YopPI5lmCmYL6OAsJoXzi","type":"track"}
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 0x1022db6e66de8b7b261a7dfda944cab46e4b2f720f859a064dca1eae4eab8eaf. 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/5YopPI5lmCmYL6OAsJoXzi.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/5YopPI5lmCmYL6OAsJoXzi.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x307d9499b9ff529cf92592497892e1b11e401369396f8b938d544f81bede65b9. 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/2DWnPlnHY4Uts5dDhFfT3W.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/2DWnPlnHY4Uts5dDhFfT3W.
{"copyright_id":"0xdb25ed2df52debe9dbadc3f9bb5b5da153fb05ce6632b4aa0968d2c64b169f13","isrc":"FRUM71800319","name":"Il ne rentre pas ce soir","registered_at":"2026-06-08T20:28:57Z","spotify_id":"1DuAMg1eoXxMyMQYlfgTQP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb25ed2df52debe9dbadc3f9bb5b5da153fb05ce6632b4aa0968d2c64b169f13. 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/1DuAMg1eoXxMyMQYlfgTQP.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/1DuAMg1eoXxMyMQYlfgTQP.
{"copyright_id":"0xa4e19dffe00d5d91e04e9b32b9f745511cdd5b972760049efc08bfc33e26813d","isrc":"FRUM71800320","name":"Le cimetière des éléphants","registered_at":"2026-06-08T20:27:09Z","spotify_id":"4OqHCgxq7zAYoEqZgZaPvj","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4e19dffe00d5d91e04e9b32b9f745511cdd5b972760049efc08bfc33e26813d. 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/4OqHCgxq7zAYoEqZgZaPvj.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/4OqHCgxq7zAYoEqZgZaPvj.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ad0f20703ea0d40593f5fe0a330c7c4a66840fa14249c72ef9b32b40ba9367. 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/2IVCSe0Qn80f3XMQ9bPQ8Y.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/2IVCSe0Qn80f3XMQ9bPQ8Y.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5207f273219402f4878601f90b399a0442f32f2079cf9bef5dc07f04cdd573f5. 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/4TUXRiT0bVhoqGSwPRNaWu.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/4TUXRiT0bVhoqGSwPRNaWu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e48550f7f6ed6403c9dfd152ca885005ef3fd8d0386c1d3055223ef7dd3821. 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/63g43emRmf55THm5nvhARs.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/63g43emRmf55THm5nvhARs.
{"copyright_id":"0x41c65e43930c0a648cc85eefc5e5c757e3b4a3c021b679b68e9ef7cf7c833049","isrc":"FRUM71800324","name":"That's How I Got To Memphis","registered_at":"2026-06-08T20:26:37Z","spotify_id":"2bzl3nZls26U3alrazxr1U","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c65e43930c0a648cc85eefc5e5c757e3b4a3c021b679b68e9ef7cf7c833049. 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/2bzl3nZls26U3alrazxr1U.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/2bzl3nZls26U3alrazxr1U.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a5e9655fc1d479bbcad7f414b9e48a0b7475256f57b2aa09631e6fd3bf134a5. 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/0jwPD51hR504VUacUy5HRt.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/0jwPD51hR504VUacUy5HRt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8102a3b9bb96e90f2e826b84235fa2e0531a58c442d2e6afd0b2bf08484574f2. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6FawHD6EOZJdquMWnRsvMA.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/6FawHD6EOZJdquMWnRsvMA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79ed1ef3515bfe191f5042d2f37d21b52488411bc58465312ff10eced91213ba. 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/0ycnka8U5RG2ZOINkfPE7E.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/0ycnka8U5RG2ZOINkfPE7E.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc87dd46a6bfe34a36e77623e1d66e6b163ea6d0754f2c43c7728de46363f0b9a. 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/3hTC8ygJq2jJUp8vT92KQB.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/3hTC8ygJq2jJUp8vT92KQB.
{"copyright_id":"0xe98bb3dcf42aa3f153e7a3aa234b6feafdbcb8162070a8e4ecbf2c7cc972c876","isrc":"FRUM71800329","name":"La dernière séance","registered_at":"2026-06-19T11:37:41Z","spotify_id":"4Jl8QAwj8D98EvqSa3f18e","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe98bb3dcf42aa3f153e7a3aa234b6feafdbcb8162070a8e4ecbf2c7cc972c876. 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/4Jl8QAwj8D98EvqSa3f18e.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/4Jl8QAwj8D98EvqSa3f18e.
{"copyright_id":"0xeb958be4386756a4a8fdd2c0787447a35b53e6eb9b0f0d879d1ab720355fe8e2","isrc":"FRUM71800330","name":"Tu peux préparer le café noir","registered_at":"2026-06-08T12:23:13Z","spotify_id":"3ZibRLcs5p4O2pD5X4UgkS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb958be4386756a4a8fdd2c0787447a35b53e6eb9b0f0d879d1ab720355fe8e2. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3ZibRLcs5p4O2pD5X4UgkS.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/3ZibRLcs5p4O2pD5X4UgkS.
{"copyright_id":"0xee28441d5705991effed9e16357634a7ee93bf9f1390a2f06229522ee5944cd5","isrc":"FRUM71800331","name":"Je chante pour ceux qui ont le blues","registered_at":"2026-06-18T16:35:05Z","spotify_id":"4HK8WH1pMnoBoR0O5f3SvK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee28441d5705991effed9e16357634a7ee93bf9f1390a2f06229522ee5944cd5. 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/4HK8WH1pMnoBoR0O5f3SvK.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/4HK8WH1pMnoBoR0O5f3SvK.
{"copyright_id":"0xe1149b8cde968a4ff278556ea62c797d0d7fa78b218221809abea40e59940a9e","isrc":"FRUM71800332","name":"La même tribu - Version 2","registered_at":"2026-06-04T08:40:25Z","spotify_id":"4zOq5CQ2PohoAaGPiBrOr8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1149b8cde968a4ff278556ea62c797d0d7fa78b218221809abea40e59940a9e. 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/4zOq5CQ2PohoAaGPiBrOr8.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/4zOq5CQ2PohoAaGPiBrOr8.
{"copyright_id":"0x8623b1ca1ae933daae0c8a93a81e2d2884f249adc0b57ba99e53902f5bf1a93a","isrc":"FRUM71701519","name":"La même tribu","registered_at":"2026-06-07T13:42:05Z","spotify_id":"0ZAT0LT7GYo7EKbhWsexJK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8623b1ca1ae933daae0c8a93a81e2d2884f249adc0b57ba99e53902f5bf1a93a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0ZAT0LT7GYo7EKbhWsexJK.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/0ZAT0LT7GYo7EKbhWsexJK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a22732b624e84716cea6d72f2dcc5d858f9057a643c881c18d6417e3abfe0b4. 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/6QCDTwSZRNJoJRvK02m4gv.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/6QCDTwSZRNJoJRvK02m4gv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd13625af5935d14481c14a43d000629d9e3aa8719fa4604768cd593023aaa244. 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/1oLuyiNuw1YbCqI6VBoXg8.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/1oLuyiNuw1YbCqI6VBoXg8.
{"copyright_id":"0xdbd9fecb4fdac5387f41a77f474584d9b02ad998aa133c01e3786e7ba2be4935","isrc":"FRUM71701523","name":"Sur la route de Memphis","registered_at":"2026-06-09T17:55:36Z","spotify_id":"1mtVBzx8zBplNXnnFDViin","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd9fecb4fdac5387f41a77f474584d9b02ad998aa133c01e3786e7ba2be4935. 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/1mtVBzx8zBplNXnnFDViin.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/1mtVBzx8zBplNXnnFDViin.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb19da725de22e36e16bf0f4344d9ddac1d5845f367425b6528335a28453d23. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3fz5wOO1kzz7PEgicojJB1.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/3fz5wOO1kzz7PEgicojJB1.
{"copyright_id":"0xc8c0660d2e8f62e9eaeabd2777a98c3b2edaa4fdcbf09c31397762f2848deceb","isrc":"FRUM71701525","name":"Lèche-bottes blues","registered_at":"2026-06-18T16:34:55Z","spotify_id":"4WWbkz4NrdH0V9HWVwzSsa","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8c0660d2e8f62e9eaeabd2777a98c3b2edaa4fdcbf09c31397762f2848deceb. 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/4WWbkz4NrdH0V9HWVwzSsa.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/4WWbkz4NrdH0V9HWVwzSsa.
{"copyright_id":"0x5fbaff6199b0e58b874bbe964fb3086ac413bab522927ac0744a29b6eea376c2","isrc":"FRUM71701532","name":"Toujours un coin qui me rappelle","registered_at":"2026-06-18T16:36:05Z","spotify_id":"47YZgt0m4eikSpLwhZwG2L","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fbaff6199b0e58b874bbe964fb3086ac413bab522927ac0744a29b6eea376c2. 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/47YZgt0m4eikSpLwhZwG2L.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/47YZgt0m4eikSpLwhZwG2L.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9404944a52e99f956517492a8ed005446ab930aa16fc96005df3ce006e1e4081. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6toziwNCH9h10J1SBiyGNt.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/6toziwNCH9h10J1SBiyGNt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x803deeb2e4f44cc68bf3c0b6377f9ebed33be8198fcc99be0bf5bd60c353da05. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3BjsIwme9aaDmq7kTmvCdA.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/3BjsIwme9aaDmq7kTmvCdA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbd8ba61d31cabda4be5cfada2c661ecba52636e107334e9a3fc0ce0abb8a909. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2rhIQjWdrVz0dIuxpYmnYD.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/2rhIQjWdrVz0dIuxpYmnYD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c447377c39392dd2fae6659091ad9464d3e1509ee92b95a4b1f61941d18f82. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7xKaM0KV46IOqdXw2s9n2F.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/7xKaM0KV46IOqdXw2s9n2F.
{"copyright_id":"0x47badcea3e9f219476f0967ffd860e86ae14dafc4286628136686a888f61672e","isrc":"FRUM71701530","name":"Nashville ou Belleville","registered_at":"2026-06-18T01:37:31Z","spotify_id":"21iNNRHUbzIhgEHLwg1xiz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47badcea3e9f219476f0967ffd860e86ae14dafc4286628136686a888f61672e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/21iNNRHUbzIhgEHLwg1xiz.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/21iNNRHUbzIhgEHLwg1xiz.
{"copyright_id":"0xd21f4224e3205d3456209e42c2133525b674574aa2d1fc3d69d9b24ff32dacb3","isrc":"FRUM71701533","name":"Un portrait de Norman Rockwell","registered_at":"2026-06-06T17:32:11Z","spotify_id":"2PP7ULzMlbRDfwTEa7Dv0Z","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd21f4224e3205d3456209e42c2133525b674574aa2d1fc3d69d9b24ff32dacb3. 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/2PP7ULzMlbRDfwTEa7Dv0Z.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/2PP7ULzMlbRDfwTEa7Dv0Z.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38b8ce4cdee477745467b6e72688b21d615828c597e0bde2587fda27de15866. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4ydALQBPxIxN9y48YZ02sz.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/4ydALQBPxIxN9y48YZ02sz.