"Paloma Blanca" (Spanish for "white dove"), often called "Una Paloma Blanca", is a song written by Dutch musician George Baker (under his real name, Johannes Bouwens) and first recorded and released b
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 0x15fee2145df1bab22b5d40087a9e984e0960246a6e4c4d4614a08c6dddfcff7b. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9a2f3d72-c330-4b26-919d-b42ab3b3fb33.json and https://artists.proofprofile.net/proofs/artist/9a2f3d72-c330-4b26-919d-b42ab3b3fb33.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).