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 0x2b018947955e30fe6dc3f92275e24b7bcf4afea5d6c2d732c096db00c1148086. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cf9d1e85-e0e6-4f9f-9b91-3bd93e982808.json and https://artists.proofprofile.net/proofs/artist/cf9d1e85-e0e6-4f9f-9b91-3bd93e982808.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
La Maza (Coro Fermata / Arr. Liliana Cangiano) [feat. Guillermo Freijido, Federico Plenc, Pablo Logaldo & Fermata Choir]
El Ciclo Sin Fin [Circle Of Life] (En vivo)
Balada Para Un Loco (Auditorio Nacional del SODRE, Uruguay) [En Vivo]
75th Anniversary (Live Tribute to "The Legend") [LIVE in URUGUAY]