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 0x420f801895534b29b08629222a2e3c19e8a38accb520c4342e0c85ebaaf6efe4. 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/fd2ca538-1439-46bd-826f-28a89e26f5f7.json and https://artists.proofprofile.net/proofs/artist/fd2ca538-1439-46bd-826f-28a89e26f5f7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xa6ff240164b40d466f08515bb5fffc099e1a3670edd394ca9b67b8177db3ce83","isrc":"QZ4JJ1802158","name":"Jeeg Robot","registered_at":"2026-06-06T04:57:37Z","spotify_id":"1DqoYgdGp0vCsQvrxfQPCP","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 0xa6ff240164b40d466f08515bb5fffc099e1a3670edd394ca9b67b8177db3ce83. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1DqoYgdGp0vCsQvrxfQPCP.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/1DqoYgdGp0vCsQvrxfQPCP.
Maratoneta [feat. Depha Beats] (Bonus Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab12e04653869837c006cdfd14bd4686c22a39d2fc77a8393a2e542dd026748. 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/3odk91nSsw93LabVWNl5gT.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/3odk91nSsw93LabVWNl5gT.
{"copyright_id":"0xa6ff240164b40d466f08515bb5fffc099e1a3670edd394ca9b67b8177db3ce83","isrc":"QZ4JJ1802158","name":"Jeeg robot (feat. DOD & Il Tre)","registered_at":"2026-06-06T04:57:37Z","spotify_id":"0tu4GgGCVUE44UxH4olPr6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ff240164b40d466f08515bb5fffc099e1a3670edd394ca9b67b8177db3ce83. 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/0tu4GgGCVUE44UxH4olPr6.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/0tu4GgGCVUE44UxH4olPr6.
Barcellona (feat. DOD, Muso & Regazzino)
{"copyright_id":"0x38750dcf8ed054d2181ee72fb994179d99fefd7c91b8b76145e8df606cd8f3eb","isrc":"QZ4JJ1802159","name":"Barcellona (feat. DOD, Muso & Regazzino)","registered_at":"2026-06-24T14:31:21Z","spotify_id":"6J4GViFCk3R8n4Oe9Wci5T","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38750dcf8ed054d2181ee72fb994179d99fefd7c91b8b76145e8df606cd8f3eb. 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/6J4GViFCk3R8n4Oe9Wci5T.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/6J4GViFCk3R8n4Oe9Wci5T.
{"copyright_id":"0xf6bfddeecc479b72760de35a43e96e7afa7ac7e40698c508b39b7dd75ff773e5","isrc":"QZ4JJ1802160","name":"Soddisfazioni (feat. Pedar Poy & DOD)","registered_at":"2026-06-21T03:46:48Z","spotify_id":"6O1l9zeFljJdAy46TKSwfn","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6bfddeecc479b72760de35a43e96e7afa7ac7e40698c508b39b7dd75ff773e5. 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/6O1l9zeFljJdAy46TKSwfn.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/6O1l9zeFljJdAy46TKSwfn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b1b5869cfc45bf70e7b6a7ab3b500485a47bc8dea465c7f315512cf8c338a09. 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/3ltsi9o610M3Qz91q91Ojv.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/3ltsi9o610M3Qz91q91Ojv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0c69d719d0aa15541fd5e6c2e496d50c3f69c94ebba1f6791b325a2a027c96f. 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/0hy1GR44vcSU97DzD7t5Hr.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/0hy1GR44vcSU97DzD7t5Hr.
Escape (feat. Lucia Gioielli & Depha Beats)
{"copyright_id":"0x30597b4da863cacae4eb9a3585b73dbd18ebd6b96c27902af3cf3fa65849d0b8","isrc":"QZ4JJ1802168","name":"Non vanno bene (feat. Skioffi)","registered_at":"2026-06-20T07:18:45Z","spotify_id":"7Hvjy9ahjvHZZOpKpZ1n0h","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30597b4da863cacae4eb9a3585b73dbd18ebd6b96c27902af3cf3fa65849d0b8. 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/7Hvjy9ahjvHZZOpKpZ1n0h.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/7Hvjy9ahjvHZZOpKpZ1n0h.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a257e72d89a7de6b65c88446d9c664363d9b83525e8f8f63e3be846f169e6a. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1oiU1jgL87TmD9fDBvbTLh.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/1oiU1jgL87TmD9fDBvbTLh.
Maratoneta (feat. Depha Beats) - Bonus Track
{"copyright_id":"0xcdfdf041d2c8bf46ae92a280f89f9cf04fc8afee77cb90c82faf48180b484650","isrc":"GBKQU2169770","name":"Thirteen Shamans - 200 bpm","registered_at":"2026-06-23T15:39:14Z","spotify_id":"65VruY5ROFwv5Sv5wUCG0J","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdfdf041d2c8bf46ae92a280f89f9cf04fc8afee77cb90c82faf48180b484650. 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/65VruY5ROFwv5Sv5wUCG0J.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/65VruY5ROFwv5Sv5wUCG0J.