Eckhart may be: People with the surname Eckhart Meister Eckhart (–), German theologian Johann Georg von Eckhart (1664–1730), German historian and linguist Dietrich Eckart (1868–1923), German journ
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 0x1393c8512967b90bfd52b925f333905125fe00357678ca2a7b9e6b9105dfbfdb. 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/b1de0434-fb24-40ab-ad73-375ed59f8613.json and https://artists.proofprofile.net/proofs/artist/b1de0434-fb24-40ab-ad73-375ed59f8613.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).