Nardi may refer to: Industrial Nardi (agricultural machinery manufacturer), Italian manufacturer of agricultural machinery Nardi (carmaker), an Italian automobile and racing car maker Nardi 750LM,
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 0x51f942f185491c7596165b9f972b7b6d4867d82cc7206145db74de21ef4e786c. 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/13aab733-e8e6-4b30-a8b5-6038263b06c9.json and https://artists.proofprofile.net/proofs/artist/13aab733-e8e6-4b30-a8b5-6038263b06c9.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 0x010d7741474297bc409a078fe711fea93d62a004fc398ab95b62b677184cc289. 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/ITUM72300735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x248ece1a2c812265160c99f7ac0de5619f7ef0c7bb7de1683ff3decdd3e5093f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITUM72300737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef3f2ed33d39308337d889e4adeb340bb05bd395765e448f62e93ebfca7e3c06. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITUM72300745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33fd515d2390fda83825c4aa7d11eb9f657bcc6c57ac7bbdb7923a5d5657a220. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITUM72300738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce3a747433686500a4af7b11c9aa237b0e72c4abf4cc357d15f76cbf8c94b19. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITUM72300746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a48bd34c26b1b412de1fd535fb0bb82b9688a7ba1c9450eb4411d455dcb680. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITUM72300734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c78fc4029225d2de3ddcff9b86dbfcc5043c143c3bd76fedeea269ca180eb69. 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/ITUM72300741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf140311c5cde3a56f69a9a5223d91007fb1aa20409f05eaa79c7c0c4d9afa5e8. 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/ITUM72300736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc60ba323e78423939f4ca0197a078455e5943ad911a4cc4757f876635b3b9d10. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITUM72300733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62230aa4c6f8b541818ac6bef53ad76bf60e490ce4caec66d695badd9db5f65e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITUM72201981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x808e34843b077c62b3df02e68c10700317782bbfe6def49d6602e5e61fcabc80. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITUM72200248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58e9b4d2a1b2412708640ce2cf25d8dc321706ff48d839be27fb2c94d292a9d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITUM72100282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf698b5c67c6ef1884505529cbda5c9adb76c888a37eb6996c9059420e6d96689. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITUM72300079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46faeb110e3a0fb65a6ab347c9a9e53bf16dc9de0d21f8ea028f9a33d67d56f8. 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/ITUM72000353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf698b5c67c6ef1884505529cbda5c9adb76c888a37eb6996c9059420e6d96689. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ITUM72300079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62230aa4c6f8b541818ac6bef53ad76bf60e490ce4caec66d695badd9db5f65e. 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/ITUM72201981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62230aa4c6f8b541818ac6bef53ad76bf60e490ce4caec66d695badd9db5f65e. 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/ITUM72201981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x808e34843b077c62b3df02e68c10700317782bbfe6def49d6602e5e61fcabc80. 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/ITUM72200248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58e9b4d2a1b2412708640ce2cf25d8dc321706ff48d839be27fb2c94d292a9d. 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/ITUM72100282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46faeb110e3a0fb65a6ab347c9a9e53bf16dc9de0d21f8ea028f9a33d67d56f8. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ITUM72000353.