Peter Bruns (born 1963) is a German cellist and university professor. Biography Bruns was born in Berlin. At the age of nine he began to play cello. After his studies at the Berlin Hochschule für M
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 0x680c5d01ab84df63f103e9b8555143d625dcbf0bfe4cf01b3d37e993901ab20a. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f4fef084-696c-4a26-9266-5cab8fde47c5.json and https://artists.proofprofile.net/proofs/artist/f4fef084-696c-4a26-9266-5cab8fde47c5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).