Gabriele Susanne Kerner (born 24 March 1960), better known by her stage name Nena, is a German singer who rose to international fame in 1983 as the lead vocalist of the band Nena with the Neue Deutsch
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 0x73c1f34109345dad4e829d91e212d33ed83b8b034f254f679eebf72f20f77e0b. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2adb791b-66bd-4fb0-9d0b-8acff76615e7.json and https://artists.proofprofile.net/proofs/artist/2adb791b-66bd-4fb0-9d0b-8acff76615e7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).