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 0x01967d8a3d60fe5784e916552bacbcbfaeb81c4096be0f552a2f5c1eefb9a022. 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/6a212ec0-fc93-4e85-b764-b2f6c087509c.json and https://artists.proofprofile.net/proofs/artist/6a212ec0-fc93-4e85-b764-b2f6c087509c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xb34e7def39a29de9d20278387259b00b73c20d908ef7fa18ff57a39bd5c6a381","isrc":"ITK210900060","name":"Prima che muoia ancora","registered_at":"2026-06-29T17:26:55Z","spotify_id":"4qgnY8mSaZXRl9njjz2FD2","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 0xb34e7def39a29de9d20278387259b00b73c20d908ef7fa18ff57a39bd5c6a381. 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/4qgnY8mSaZXRl9njjz2FD2.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/4qgnY8mSaZXRl9njjz2FD2.
{"copyright_id":"0xf6ac1dae236977de014bd765e1b2405662de67f57883830e503ffca481ebdfca","isrc":"ITP841700097","name":"Un giorno nuovo","registered_at":"2026-06-05T12:52:14Z","spotify_id":"0fHJr2lT2yLbMtucsHs5hK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6ac1dae236977de014bd765e1b2405662de67f57883830e503ffca481ebdfca. 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/0fHJr2lT2yLbMtucsHs5hK.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/0fHJr2lT2yLbMtucsHs5hK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5af436e7a46e23757942df1c52a2983e7af4ec41ef30e22c3a311ecda45b06e8. 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/3oqZeWo8Sh53gsKxpV7k1R.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/3oqZeWo8Sh53gsKxpV7k1R.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18934518f453a34293177e5cac989ee6be0cf1751c8e193ee94228cee90ac8f. 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/6fpN3T5RwJym126qrw5DLU.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/6fpN3T5RwJym126qrw5DLU.
{"copyright_id":"0xd355bc578dc186b5323308571bf02b5cef89dc2a78573b7294a8530b2914fdfc","isrc":"ITP841700100","name":"Perdo conoscenza","registered_at":"2026-06-18T17:01:19Z","spotify_id":"5OFvuRXzKFLomnQalVIKBM","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd355bc578dc186b5323308571bf02b5cef89dc2a78573b7294a8530b2914fdfc. 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/5OFvuRXzKFLomnQalVIKBM.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/5OFvuRXzKFLomnQalVIKBM.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f0fe693065437181d00557aacb81e799e91546d47d77cc5d4eab9ed4ecb994. 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/7wSMsBzgfQCiQg8hyVg5xQ.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/7wSMsBzgfQCiQg8hyVg5xQ.
{"copyright_id":"0xfc17249237257444c0ef80c4e8d17ce17c6ab3c4cbe0db55c04e3fbe77e0f959","isrc":"ITP841700103","name":"Meno male che ci sei tu","registered_at":"2026-06-07T13:57:52Z","spotify_id":"6ts7qxvbYIheSPfY9EUyFS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc17249237257444c0ef80c4e8d17ce17c6ab3c4cbe0db55c04e3fbe77e0f959. 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/6ts7qxvbYIheSPfY9EUyFS.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/6ts7qxvbYIheSPfY9EUyFS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe46012d1fd7307fd771d8426329e78c50d231ee7009626695998a05298cfec64. 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/39hcemXmUUcWXkJVagEUnE.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/39hcemXmUUcWXkJVagEUnE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bec49e386654b25f0c75b27a76715256de74041d0947a72156e42ab2a93f926. 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/2mG23LDd0wDcnS4ci6q35D.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/2mG23LDd0wDcnS4ci6q35D.
{"copyright_id":"0xfc17249237257444c0ef80c4e8d17ce17c6ab3c4cbe0db55c04e3fbe77e0f959","isrc":"ITP841700103","name":"Meno male che ci sei tu","registered_at":"2026-06-07T13:57:52Z","spotify_id":"3qYUFuJHflNimfW1BcI3MJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc17249237257444c0ef80c4e8d17ce17c6ab3c4cbe0db55c04e3fbe77e0f959. 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/3qYUFuJHflNimfW1BcI3MJ.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/3qYUFuJHflNimfW1BcI3MJ.
La Fine Della Chemio (feat. Jovanotti, Tre Allegri Ragazzi Morti, Manuel Agnelli, Samuel, Elisa, Meg, Lo Stato Sociale, Pierpaolo Capovilla, Prozac+)
Ho bisogno di parlarti (Back To The Roots)
Ho bisogno di parlarti - Back To The Roots
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b260945ada03f8a2ec83b0d1846ec74e6259af927eb85850f68ac046b1e44ed. 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/6AJElNL2uHw2bwRzfxJdNS.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/6AJElNL2uHw2bwRzfxJdNS.
{"copyright_id":"0x954433a18fb715ccce3414e26c4d781e7bd1df64cbf5424e72ace6c0bc7a358d","isrc":"DEBL61097466","name":"Parlami per sempre","registered_at":"2026-06-21T18:17:31Z","spotify_id":"5Y1Zwus4Z0quzQOLzi8Xcz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954433a18fb715ccce3414e26c4d781e7bd1df64cbf5424e72ace6c0bc7a358d. 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/5Y1Zwus4Z0quzQOLzi8Xcz.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/5Y1Zwus4Z0quzQOLzi8Xcz.
Rock Italiano 2012 (30 Imperdibili Tracce Alternative Rock)