La Mina is a studio album by Italian singer Mina, released in October 1975 by PDU and distributed by EMI Italiana initially as double album with Minacantalucio. Track listing Personnel Mina – vocal
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 0x84ea4fbc55b3bc17ed645ab540d14058a21a485d50f5f1b3b1eb4011409ca864. Chain 2 (Bitcoin): anchored in block 953982 (2026-06-16T17:42:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2ba5b61d-86ec-4809-926b-974602e4a91f.json and https://artists.proofprofile.net/proofs/artist/2ba5b61d-86ec-4809-926b-974602e4a91f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).