Juan Carlos Baglietto (; born June 14, 1956, in Rosario, Santa Fe) is an Argentine musician, singer and composer. He is one of the iconic figures of the musical movement called Trova Rosarina, a famou
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 0x981100a6c840e1819c9e7b6cdd68a6779e0b489a36b5006071273982230dfe13. Chain 2 (Bitcoin): anchored in block 953938 (2026-06-16T11:35:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/209ccb22-68e4-4c44-a05f-3e2cf3dea17d.json and https://artists.proofprofile.net/proofs/artist/209ccb22-68e4-4c44-a05f-3e2cf3dea17d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).