J-One was a French television channel dedicated to Japanese anime and culture. It was launched on 4 October 2013. J-One broadcast anime in simulcast. Many of these are then broadcast with French dub
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 0xeb16ca6a0b1ddfa1c0e2ac8f10955247a5c0cc6e79964a04b0d07c1c6bd55644. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/12ffbee8-e32c-4f03-8c3c-a4edc5b8e8ed.json and https://artists.proofprofile.net/proofs/artist/12ffbee8-e32c-4f03-8c3c-a4edc5b8e8ed.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).