Maria Tomba (born 3 October 2002) is an Italian singer and songwriter. Life and career Born in 2002 in Verona, Tomba raised in Lobia. Her father Massimo died when she was sixteen. During high schoo
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 0xc78f79eb6a5e0eacb1a906209fb5736c5bb7df12a6c0f1e0ad26e7016d7af65d. 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/b6db5f90-f7e0-4113-898f-c612aa72db20.json and https://artists.proofprofile.net/proofs/artist/b6db5f90-f7e0-4113-898f-c612aa72db20.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 0xb3bce7f32ca527906ecee57667380a99b056f02ebd043d1a3e6bf2ebc6bed752. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:56:19Z), 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/ITAA82400038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x365074da3e7a92b4b5cd9478c2b1393312588b5f067f67bdf3cf6da975d99bd0. 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/ITAA82400039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a25ea36d0ae9c18812e8816c2d5525c5564507d25cf58fe1e5a74df249da58c. 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/ITAA82400031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aa22102b8fefcba2d92d8b5dfb0349d78b792855b85b0144309149fb4f31534. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/ITAA82400042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58cd009f9967e8f561b1b7e0235d5e812c82d431a698707350b179f920c9cd9b. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ITAA82400043.