Plurale is a studio album by Italian singer Mina, released in October 1976 by PDU and distributed by EMI Italiana. It was originally distributed as a double album with Singolare. Overview The peculia
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 0x9ba282dfdd1a639f6eb2db1117ecdce74beb479691ccf90837b3aed715bcd4df. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/616d18a2-0507-446a-9f14-b9f4362a1490.json and https://artists.proofprofile.net/proofs/artist/616d18a2-0507-446a-9f14-b9f4362a1490.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).