Graceland is a mansion on a estate in Memphis, Tennessee, United States, which American singer Elvis Presley once owned. He is buried there, as are his parents Vernon and Gladys, paternal grandmother
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e8e197459cad1d469343ac42003b22141cadc481bd77f2f758bcb59c797c659. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bbc083fe-8541-457c-bc07-309e852d296b.json and https://artists.proofprofile.net/proofs/artist/bbc083fe-8541-457c-bc07-309e852d296b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).