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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaef5dd0e8c2713a62a7a77aa3c6fc25dd6ec844f65c1dd1d6660e306d6e3fac. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c9d60999-e8da-4fd0-8647-b70d9d36aca3.json and https://artists.proofprofile.net/proofs/artist/c9d60999-e8da-4fd0-8647-b70d9d36aca3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Schöpfung bis Abraham (Die Kinderbibel - Folge 1)
Jakob bis Mose (Die Kinderbibel - Folge 2)
Der Auszug aus Ägypten (Die Kinderbibel - Folge 3)
Josua bis Rut (Die Kinderbibel - Folge 4)
Die Könige Israels und Judas (Die Kinderbibel - Folge 5)
Elia bis Ester (Die Kinderbibel - Teil 6)
Jesu Geburt bis zur Hochzeit in Kana (Die Kinderbibel - Teil 7)
Mit Jesus unterwegs (Die Kinderbibel - Teil 8)
Die letzten Tage von Jesus (Die Kinderbibel - Teil 9)
Die Zeit der Apostel (Die Kinderbibel - Folge 1)
Die Auferstehung und Pfingsten (Die Kinderbibel - Teil 11)
Die Kreuzigungsgeschichte (Die Kinderbibel - Teil 10)