Bruno Mario Lavezzi (born 8 May 1948) is an Italian singer-songwriter, composer, record producer and guitarist. Life and career Born in Milan, he studied piano and guitar at the Scuola Civica di Mi
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 0x2ed02a5362a9905291208ea0a7682675c239a2e984050ebf59a89d9b4ba78f57. Chain 2 (Bitcoin): anchored in block 953773 (2026-06-15T10:40:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ca82680f-5152-42ff-a9d5-b1ee371ae618.json and https://artists.proofprofile.net/proofs/artist/ca82680f-5152-42ff-a9d5-b1ee371ae618.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 0x6082c24ffd982ac7500f01896e33ec392399570fa3ddbb9d4b473b3111ff6c51. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/ITR007600151.
Amarsi un po' (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x318943ef227ea53409b401b6e58d84de1ba92a04b7160863775a652eb1de586c. 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/ITR007900121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ba8ab1c040c1ce7bb8aa6d0ee9fd1b123bc28d392a129de8542bdd4a62b36e. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/ITR007900141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd0cd930c8ba5edc30da31a7742a31846aef6fd7025683eec6e26c7e8139b08c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ITR008400541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5a3c0c5a74f3f358c14791a8c1980f1fe9ee0181cf6d98cc780a7cef6b13d8. 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/ITB009170828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf211ed709c5e7b07f1233a44b641cbd318b084e58368b465edb2d1fac364cd0. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/ITF030400025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd0cd930c8ba5edc30da31a7742a31846aef6fd7025683eec6e26c7e8139b08c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITR008400541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6038af5ee4fa4b22d5c33533cabe2fb3132da7865bee1fb1239ae3c3d2c52311. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITB009170831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd0cd930c8ba5edc30da31a7742a31846aef6fd7025683eec6e26c7e8139b08c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITR008400541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x318943ef227ea53409b401b6e58d84de1ba92a04b7160863775a652eb1de586c. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/ITR007900121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb65a6c070356c1b1ba00313878690687f87047ccb7db3ad23372ed513f27967f. Chain 2 (Bitcoin): anchored in block 960387 (2026-07-31T10:06:30Z), 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/FR6V81824197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2410c98f55c083fb22dc6897b2682fb039e7d8c82596b12f78a7b5c6957a9ab3. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ITA640901492.
Sull'avenida Marginal (Avenida Marginal)
Capo Verde terra d'amore Vol. 1 (Canzoni di Cesaria Evora e Teofilo Chantre in italiano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fffd906a4eba36c62359181b8e8780f59605ca8b0df10e28babd6b3b0247494. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITK601102007.