The General Students' Committee () or AStA, is the acting executive board and the external representing agency of the (constituted) student body at universities in most German states. It is therefore
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 0xe9f6baaf17b15859826a3ad8b33dba6fb1324268497046fe74ee696a0f6a5686. Chain 2 (Bitcoin): anchored in block 953889 (2026-06-16T04:57:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0cf4f5be-84f7-4003-8ce1-874c2d4ba16d.json and https://artists.proofprofile.net/proofs/artist/0cf4f5be-84f7-4003-8ce1-874c2d4ba16d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).