Hand aufs Herz (Hand on Heart) is a German soap opera that premiered on October 4, 2010 on the private broadcasting station Sat.1. It got canceled in June 2011, announcing the series finale for Septem
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 0xf252a59c52c18623e7065909fa68a01861d1f8dfca191e6c59b2be9adc951416. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/629c6db1-2320-449f-aa37-a4d094f846db.json and https://artists.proofprofile.net/proofs/artist/629c6db1-2320-449f-aa37-a4d094f846db.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).