thumb|Paola Turci (2010) Paola Turci (born 12 September 1964 in Rome) is an Italian singer, songwriter, performer and author. Career 1980s Turci's musical debut was in 1986 when she participated
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 0xf59e2a87c396eadddc3a7ad04db2de940d076edf77669adaef949df1611181a9. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6665c9b6-daf8-413d-9a0b-0e20b9592974.json and https://artists.proofprofile.net/proofs/artist/6665c9b6-daf8-413d-9a0b-0e20b9592974.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).