Enrico Caruso (25 February 1873 – 2 August 1921) was an Italian operatic tenor, who sang to great acclaim at the major opera houses of Europe and the Americas, appearing in a wide variety of roles tha
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 0x8539549570ebab2e53f8ce735c6cd51c35448a8625a3f3530f0ecea31c5da7bf. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fa1d72f0-67f3-4410-a58a-01419b84bf4d.json and https://artists.proofprofile.net/proofs/artist/fa1d72f0-67f3-4410-a58a-01419b84bf4d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Caruso, Enrico: Complete Recordings, Vol. 7 (1912-1913)
The Voice and the Legend (245 Original Recordings)
'O Sole Mio (100 Songs - Original Recordings)
Antología: La Colección Completa (Remastered)