Zero Assoluto is an Italian pop rock duo formed by Thomas De Gasperi and Matteo Maffucci. History Thomas De Gasperi (born 24 June 1977) and Matteo Maffucci (born 28 May 1978) met as teenagers at the
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b505459dcd456418c7e1f0d8278b88fd44d1faa95161b34a737a592c7996c7. 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/081cb39b-06e6-4ef0-aeef-3ae4105d4560.json and https://artists.proofprofile.net/proofs/artist/081cb39b-06e6-4ef0-aeef-3ae4105d4560.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94735113d7dc4aca42532bf2305afe356a09e428d7b65fe319442cedf746ac0c. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/ITC049500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad888ef5f481c28a22e4aee99aa541805877cd6b8dd6b9b4d1f94989b2f943d3. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/ITB780200171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f9f5e13feedb1f8440cffaf288cdbf147f45df98d059a93570a5e9430c60d3. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ITB780200280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c430a854cee7924fc589dc2888e2be394fa1e2935ff93f9fe48637b452ade91. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/ITB780200191.
Win Or Lose (Appena Prima Di Partire)-Radio Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d4a5d88473760ee326de280758a386b4ab690f059dadd9df76803fc435085a4. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/ITB780600505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9635e710a89c211738d1db0e33a3a06f232b63140ca7317d47be42b184d6a4b0. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/ITB780700638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe64ddadb7d03e7a77db7ad794b8878c2039213e9b27fa6d5985ad73637296dcf. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/ITB780700642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfed236d734998b6d1fb5fddf91faa4e45910258b9e7bb9d5195bc0507769d57. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ITB780700915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99e3296f85c68899abd05cad4b18dca748d8f759e3e931e226786ecaf7ed90cc. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/ITF030901291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee5d6e68f6b43a98f3eb6cb88f29cafb000d064acf01474a1cd31fe5fe9bfa9d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ITF030901299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e72bf43d07c40e68da975a4fb4b6e574decd5dfdf5c99a5036f60794ef01c22. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/ITF030901295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd733359b2536096de775dd6f1e4ca00408f08e34fa3dc2a627b6bb61dd40cc29. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ITF030901298.
Scusa Ma Ti Voglio Sposare - Light Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea67ba8c76e4a66605005ecabfd28b8de9937ca02ffff7864915642f080c9003. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ITW221100111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6721c9a999e6187e3f939a7423d5bb5867e3aac2cd4e5b51e8fc412158c51b. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/ITW221100104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd133c79daed42d187f74bf0b87c339a935fbfd51c6ad9bae01e2b212185a5b0e. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/ITW221100105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ebd02d22d91c1903e21aa219d67c0ae66a056a400dcb10969ac2676b8332667. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/ITW221100108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb6ee1d37d35bcec5d535a95ed17adb262c4d4b0b77922102f2b738d10320759. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/ITW221100109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4733b600214e0239d508a672ce5fe8479bfd93b0805bdc512d66c8fd08a2bfbf. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/ITW221300119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa707b9945f1f38e00c95effbb194daa17c0e5319e4fba84860de730bd8a83adb. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ITW221300121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07bb4a35e35dd8e0f22055e8b358cbe7012244831833e68585385ad1e5f83824. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ITQ001500131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18a8cfcad28170ba67ff4ef275720ed790d13ebf35b6b97e41cf08de83e190bb. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/IT6JL1600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcfca746a4af902b02199d685bda1b38c1af49268ed19d94971f18e3ddaf7362. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/IT6JL1600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ed7aa43266769aa5a239734ffc764256a0942493251b765b28b4cad42fd391. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/IT6JL1600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf14443212c0b662319dff1e327f76e8d278df562fe2157cbfd262911af5f6e5d. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/IT5KF1600016.