Prezioso is an Italian surname. Notable people with the surname include: Giovanni Prezioso (1957–2023), American lawyer Mario Prezioso (born 1996), Italian footballer Roman Prezioso (born 1949), Amer
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8617521001fad5866a00e50065c86abe46b88528aa8eba9b193483943322bebe. 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/ca22f0b8-0c3d-40fc-a7c7-4e5a4d9adb88.json and https://artists.proofprofile.net/proofs/artist/ca22f0b8-0c3d-40fc-a7c7-4e5a4d9adb88.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3f3b78d40d108c50c4e73d642cb3257893bcb2922c5c83020455d1975dac22. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ITG412200047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb4f2d697ecf9d734e694725e1d472d0b381e5dfc205722eaa7075495653ba01. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEE862400510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15632e4d7423fa6cf158b0d4beb0c890637a8378ebdc6cfc719363c1238e26da. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEE862301531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2da99436ff78b180afea482f6cfc4e464cf13b377416db139b1c03c9e51e92d7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ITG412300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x533620b9d1466f68f50508e87850d10bb78eb4f4cdae6afd01c5751e27ce57dd. 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/ITL010500130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a70a628e0b5d7edc34d1cce0081254b3b90aea5bda9c6df706944250039cbc2. 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/ITL010500132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b4570f22a3b85c5b1a8d166fd0e10c6dfd02d7440de5b0d5d17bc9e9fbdc645. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITL010500133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39ab7e35b6f050d5241844a8e4eb578f8951a068bf3c7b062648b7c15158d1db. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITL010500134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9792c200a7b0b470f36c6ae1dd710755a5b35dc139e554ade3d730be6a3dcb9b. 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/ITL010500135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8872d69f2781170ebb8b34f7ab8627c09d79e1611f93b25b9b6268b857bc018f. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/ITL010500131.
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
Rockin' Deejays - Leletto Was in Act Work
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa185d0bedcaa4a5bfdebb11af5bb7519b9821465764cd7c910e0af1572da2d48. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/ITL010500137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9f33480355fddef650d8cf7a739afb805ac53e3d083dbfb93bd48feffde5f4a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ITV952100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82b96fbefbe1acf4d9eabb737e7c9cc9bda8ff04330aa2eace07f49b7bcf64f2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLZ542400593.