John Carl Adam Grahn (born 4 November 1984 in Karlskrona) is a Swedish rock singer, songwriter, and guitarist. He is founder and frontman of the Swedish rock band Royal Republic.GND-Normdaten: Adam G
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 0xf8f68ecd010adb1296ce317db1209e1cd6e10cbad9e596b7715d06695306714f. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/57eb14d3-941f-43a8-b69a-a81f5d56108a.json and https://artists.proofprofile.net/proofs/artist/57eb14d3-941f-43a8-b69a-a81f5d56108a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).