Bold most commonly refers to: Bold (typography), a font style used for emphasis, also known as boldface Boldness, or being bold, a human attitude, the opposite of being shy Bold or BOLD may also ref
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 0xd8f14d62dff9acaf768ba0e921bf47c431cec5f10b433e6444d0360faade1fa6. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b3f9b302-1b63-4fa8-b68f-cf73d1a27f0e.json and https://artists.proofprofile.net/proofs/artist/b3f9b302-1b63-4fa8-b68f-cf73d1a27f0e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).