Romantica may refer to: Music Romantica (band), an Americana band Romantica (album), a 2002 album by Luna "Romántica", one of the 12 Danzas españolas (1890) for piano by Enrique Granados "Romantica"
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 0xe7d4a8fe2af63cc95fb395c2fb906e05839df5df1cb0f0c17fe540251900a40a. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c71a7406-b290-457d-b54b-49417ea8253c.json and https://artists.proofprofile.net/proofs/artist/c71a7406-b290-457d-b54b-49417ea8253c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).