Alberto Socarrás Estacio, (19 September 1908 – 26 August 1987), was a Cuban-American flautist who played both Cuban music and jazz. Biography Socarras was born in Manzanillo, Cuba, in 1908, and start
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 0x3d937af2ef12697222ca01f07f271500547ede59f4367a14e2b77720d4c23862. Chain 2 (Bitcoin): anchored in block 953882 (2026-06-16T03:13:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/09ede70b-3492-4531-a6d5-08be6faed8d9.json and https://artists.proofprofile.net/proofs/artist/09ede70b-3492-4531-a6d5-08be6faed8d9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).