right|thumb|Mediengruppe Telekommander performing live at the Donauinselfest 2006 festival on the Danube Island in Vienna, Austria, on June 25, 2006 Mediengruppe Telekommander, founded in 2001 by
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 0xa394ea6a6db10b19ade07e1ff7410c33813f5f42aadadb39c16f5095a86b4d7e. Chain 2 (Bitcoin): anchored in block 953630 (2026-06-14T12:06:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/310cca29-23d7-4075-906e-a0101516f489.json and https://artists.proofprofile.net/proofs/artist/310cca29-23d7-4075-906e-a0101516f489.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).