is a coffee beverage common throughout Spain and Latin America consisting of strong coffee (usually espresso) mixed with scalded milk in approximately equal amounts. The amount of milk can be higher
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 0x6115648755f13f3abf8556dc7af124157f577e4b964c31675e37723872b81999. Chain 2 (Bitcoin): anchored in block 953694 (2026-06-14T21:38:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6ffd2f3c-46e0-4e9e-81b1-237a871ef374.json and https://artists.proofprofile.net/proofs/artist/6ffd2f3c-46e0-4e9e-81b1-237a871ef374.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).