Ying may refer to: People Yíng (嬴), a Chinese surname, the ancestral name of Qin Shi Huang, first Emperor of China in the Qin dynasty, and some contemporary rival royal families such as the Zhaos Y
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 0x907c40587b3b6d0e6d27c06eaa29fd075483691e7b0b940ec28f2f049d21e59b. Chain 2 (Bitcoin): anchored in block 953972 (2026-06-16T16:31:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2a1d44a5-f83c-4244-825b-5f974c52038e.json and https://artists.proofprofile.net/proofs/artist/2a1d44a5-f83c-4244-825b-5f974c52038e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).