Diego Armando Maradona (30 October 196025 November 2020) was an Argentine professional football player and manager. Widely regarded as one of the greatest players in the history of the sport, he was o
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 0xbde4f349f961e2e2e35ecf5a7daf8713cc63a602f5a7b6ee8444eb6f48ac6885. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/04475e6f-941f-4f8a-8cf1-37c054064417.json and https://artists.proofprofile.net/proofs/artist/04475e6f-941f-4f8a-8cf1-37c054064417.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).