Rapsodia may refer to: Rapsodia, album by pianist Gonzalo Rubalcaba Rapsodia, album by Moldovan violinist Patricia Kopatchinskaja "Rapsodia" (Mia Martini song), 1992 "Rapsodia" (Andrea Bocelli song) w
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 0xbf75dcc2dee3654daa4aa93c6d1aa9f171079f93a9c50717387a44fdd30e38a7. 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/8a6651ec-325d-4427-ac3f-c91b2485e171.json and https://artists.proofprofile.net/proofs/artist/8a6651ec-325d-4427-ac3f-c91b2485e171.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).