was a Japanese toy company founded in 1955. In March 2006, the company merged with Tomy Company, Ltd. to form Takara Tomy. The Takara motto was("playing is culture"). The company focused on traditio
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 0xae2a1802333cefb3d94b02223b2e5d3dbda81d3a2b4b4ac89130525926d486ff. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6f0ae32c-094e-4db5-b38b-391d36649080.json and https://artists.proofprofile.net/proofs/artist/6f0ae32c-094e-4db5-b38b-391d36649080.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).