De Vita is the surname of: Corrado De Vita (1905–1987), Italian journalist and writer Franco De Vita (born 1954), Venezuelan singer-songwriter Giuseppe De Vita (born 1982), Italian rower Paolo De
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 0x62ce0ce61a5950c85647465a775253030b0cad328a22f608175d5a4f3e7deb42. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d1d72e68-8869-4e9b-b7ef-5fe37cc27956.json and https://artists.proofprofile.net/proofs/artist/d1d72e68-8869-4e9b-b7ef-5fe37cc27956.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 0x8b26e746c62091b5c9579cfaffabe1b576bfdb1860ba5f42b80a1eb5f6d79521. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZHN52533620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a76e67855ee3280f5e160602c210f824553d4d62b7965d803e8f34b688609c. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:26:07Z), 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/QZHN52533621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66265a2f9c288974c32117d49a42a18fcb33a4cfd62237eb153f0e73171edade. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:38:26Z), 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/QZHN52533622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae62576b1f745a320939d48993c2283133bd4a04c0adcdf4a4a7d6f8c9d7003. Chain 2 (Bitcoin): anchored in block 957761 (2026-07-12T21:55:15Z), 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/QZHN52533623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff57f8b054eb3a843d35d290b110102de78589dee13ad2a0b3a465271710652. 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/QZHN52533624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d82fb6d2840a7d807a64a01ed8b034236fffd9a8441a9326c67369a9d856862. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZHN52533625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd56c39043ca68c6562b707893c906c9a492c56a36601deb2445c3d7067342120. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZHN52533626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b06bed7ffc413be019e089b03c4ed321216a7d65affc54c5b7a1294af90cca2. 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/QZHN52533627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cde555965b4efeb5a8ded031e33a8c810c50655db1f0823dccbba8036c656bd. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/QZHN52533628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35749678b396930d588942063972bd09bfcc951408b87ff75323243a8d273a68. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:52:32Z), 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/QZHN52533629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa47c3a46cd524e0e4bd18d1d263a577fceea6e25b6110f3d3479370d4eb14798. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZHN52533630.