Jakarta, officially the Special Region of Jakarta, previously called the Special Capital Region of Jakarta, is the de facto capital and largest city of Indonesia and an autonomous region with adminis
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880bfd8e4b89c9fa8606a1ae42abf89d5d50aa02c8f6a36c820771561d737b73. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/56f639fb-3653-4402-b666-9fd1ab7e37f7.json and https://artists.proofprofile.net/proofs/artist/56f639fb-3653-4402-b666-9fd1ab7e37f7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).