1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x2e7c4eb1639740b58be41e2a8f49ba50f5e644b8c6f5df397ef4560b1cad0882. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/83293c90-58d4-4e4d-ba38-5154f28cbd4f.json and https://artists.proofprofile.net/proofs/artist/83293c90-58d4-4e4d-ba38-5154f28cbd4f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Alle nove meno un quarto - Dal film 'Canzoni appassionate'
Inno marcia per i legionari dell'Africa Orientale
Passano i fanti - Dal film 'L'ultimo dei Bergerac'
Suona fanfara mia - Dal film 'La segretaria per tutti'
I Tre Condottieri (mussolini, Hitler, Franco)
Ti Saluto E Vado In Abissinia - Remastered
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 → block OTSBitcoinBlock must exist at that height 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 0x0fcb941c08b7bae8dcf7cbb9d16852e3139e0e893026b2f25286ecc831b8e745. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/IT0681603519.
The Italian Song: Tangos of the 30's - Volume 2
Passione Argentina - tanghi italiani degli anni '30
Grande enciclopedia del ventennio 1922-1943, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x221c61e36e1da929475a68287b50bc94847656321c66a1f728ed0cb642e96233. 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/CH6321900186.