Nils Lennart Roland Nilsson (born 27 November 1963) is a Swedish professional football manager and former player. He was most recently the head coach of Allsvenskan club IFK Göteborg. As a player, Nil
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 0x451c92cf4045a970c9021573c7170f0e9f3d9dedaf983462fde8a2ef67c1589a. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c0799e75-df6e-4ae9-9227-a99a6f63b134.json and https://artists.proofprofile.net/proofs/artist/c0799e75-df6e-4ae9-9227-a99a6f63b134.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Stockholm Boys' Choir (Stockholms Gosskör)