About this verifier
This tool deterministically reproduces raffle draws from a public Bitcoin block hash and a list of ticket inscriptions (children) present at the draw height. Anyone with the block hash and the ticket ordering can verify winners without trust.
Formula
winner_i = sha256(concat) % children_B
where concat = "hex(blockhash_B)" + str(i)
hex(blockhash_B) : lowercase hex, no 0x, quoted (includes the literal double-quote characters)str(i) : decimal draw index (base-10), appended after the quoted hashsha256 : SHA-256 of the UTF-8 bytes of the concatenated string; interpret the result as a big-endian hex integerModulo : take the integer mod children_B (number of tickets present at block B)Note : duplicate wins are allowed by design
Raffle parent
Parent inscription ID
Auto-fill reads metadata → raffle → draw → block and counts winners (share entries) .
1) Load children @ height B
2) Compute winners
Debug: parent metadata (click to expand)
Decode CBOR hex
Check your ticket
Ticket inscription ID
Check winnings
Winners