Kinderchor des Württembergischen Brüderbundes
{"copyright_id":"0x092ed4c00aa710376dfd08fcb2c5131e82f84db7933187403bea0edd354b7309","name":"Kinderchor des Württembergischen Brüderbundes","registered_at":"2026-06-15T07:07:18Z","symbol":"NIM0720023","token_address":"0x9b1b58608acc5d89ed8b300ec402fefc09f7b5c7","type":"artist","uuid":"fd6e2654-c67b-4e1a-9fcd-2db9206d5244"}
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 0x092ed4c00aa710376dfd08fcb2c5131e82f84db7933187403bea0edd354b7309. Chain 2 (Bitcoin): anchored in block 953819 (2026-06-15T18:31:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fd6e2654-c67b-4e1a-9fcd-2db9206d5244.json and https://artists.proofprofile.net/proofs/artist/fd6e2654-c67b-4e1a-9fcd-2db9206d5244.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).