Irakere (faux-Yoruba for "forest") is a Cuban band founded by pianist Chucho Valdés (son of Bebo Valdés) in 1973. They won the Grammy Award for Best Latin Recording in 1980 with their album Irakere. I
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 0x4d5628aff46611dc3e31ad853aff875f7389bcb64c51a3055532e877530cc65b. 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/8cd36863-f97b-4ef6-8e63-268b51fbbd36.json and https://artists.proofprofile.net/proofs/artist/8cd36863-f97b-4ef6-8e63-268b51fbbd36.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).