Schwarz Weiss (English: Black White) is a studio album by Austrian recording artist Christina Stürmer, comprising new interpretations of songs from her first two albums Freier Fall (2003) and Soll da
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 0x1302c77dd7ba451fc707a72a582812a036539d79a787d23fa100b9f1e62d7077. Chain 2 (Bitcoin): anchored in block 953915 (2026-06-16T08:36:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/19f3639d-a4f3-4e31-8593-950147a1abb9.json and https://artists.proofprofile.net/proofs/artist/19f3639d-a4f3-4e31-8593-950147a1abb9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).