thumb|Hanamikōji Street thumb|Gion Higashi geiko Tsunemomo surrounded by paper lanterns|alt=A geisha with lit paper lanterns behind her. is a district of Higashiyama-ku, Kyoto, Japan, originating as
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 0x0da5618b47f2cd6735e50bc4f2b913be9e6aa041be21a88b29fd966b9030c514. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4b45146f-f39a-4c82-a7c1-1857433ddc91.json and https://artists.proofprofile.net/proofs/artist/4b45146f-f39a-4c82-a7c1-1857433ddc91.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Don't Do It For Money feat. Nathalie Bulters