Sylver is a Belgian Eurodance and pop group, originally consisting of lead vocalist Silvy De Bie (born 4 January 1981), DJ and producer Regi Penxten (born 4 March 1976), and keyboardist/songwriter Wou
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 0x9f8cb7f84d44d359d94a3413603f7a63ee34ffbfae1f2913198744766ae95590. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8324731a-0762-42e5-a153-0ab8c54d5639.json and https://artists.proofprofile.net/proofs/artist/8324731a-0762-42e5-a153-0ab8c54d5639.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).