Albert Johansson (born 4 January 2001) is a Swedish professional ice hockey player who is a defenceman for the Detroit Red Wings of the National Hockey League (NHL). Playing career He was drafted 60
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 0x640dbdc0dd8739f4d7a4b52c62e65c10bed375ac70802d45e9588b42718ce509. Chain 2 (Bitcoin): anchored in block 953727 (2026-06-15T02:33:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/91a128da-ce5b-4786-85e1-7573bd96fe16.json and https://artists.proofprofile.net/proofs/artist/91a128da-ce5b-4786-85e1-7573bd96fe16.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.