Tonies SE (stylized: tonies) is a toy production company based in Düsseldorf and Luxembourg City.Horch, Wolfgang (11 February 2022). "Hamburger Hörspielwürfel stark gefragt". Hamburger Abendblatt. The
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 0x2f485e1640a0b5c5e79382f4330be1f68186b091893abbbe952536f62ae51584. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3f51988f-cd1a-45f9-884f-c9284e082be8.json and https://artists.proofprofile.net/proofs/artist/3f51988f-cd1a-45f9-884f-c9284e082be8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).