Syaiful is a given name. Notable people with the name include: Syaiful Cahya (born 1992), Indonesian footballer Syaiful Iskandar, Singaporean footballer Syaiful Lewenusa (born 1986), Indonesian footb
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 0x4aa66937fe0c1c8c93ca8a685f7ac3ad83c4f2b2a7badd790ad7bf7001794a42. 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/65731b58-7466-4139-840a-d494586f2ef8.json and https://artists.proofprofile.net/proofs/artist/65731b58-7466-4139-840a-d494586f2ef8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).