Shum may refer to: Surnames Shum (surname), a surname in various cultures (including a list of people with the name) Cen (surname) (岑), sometimes romanized Shum in Cantonese Shen (surname) (沈),
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 0x3eecbdd10b1361adcee9548f8a79b7e30e2184d8df790fbe531f19c1ae745d2c. 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/5f77b2df-c842-4346-8e1b-615597f5ffea.json and https://artists.proofprofile.net/proofs/artist/5f77b2df-c842-4346-8e1b-615597f5ffea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Évtizedekre ottfelejtett gy​ű​l​ö​let II.
PULZ​Á​LÓ DOBOK TISZT​Í​TJ​Á​K MEG AZ EGET