The Shorts was a pop group from the Netherlands consisting of Hans van Vondelen (vocals), Erik de Wildt (keyboard), Hans Stokkermans (bass guitar) and Peter Wezenbeek (drums). The group was formed in
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 0x2f16e4a448a031dbef4f7b6ca11247cfe483387a5d87bd3edff38391f943f414. Chain 2 (Bitcoin): anchored in block 954650 (2026-06-21T04:51:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d9effe60-2427-4160-bd1f-1d45c82977b3.json and https://artists.proofprofile.net/proofs/artist/d9effe60-2427-4160-bd1f-1d45c82977b3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).