Secoo () is an online to offline e-commerce platform and the largest online luxury retailer in China. History Secoo was launched as Secoo Jimai in 2008, by Richard Rixue Li. Secoo started out with se
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 0xb9e13b63752ae118499b20abba0998245300a42e8be63cc80fc11f7a33c68103. 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/41dedbee-a354-4740-af4f-911b4af26293.json and https://artists.proofprofile.net/proofs/artist/41dedbee-a354-4740-af4f-911b4af26293.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).