Pick ledger & transparency

Every TACTIX model pick is written to an append-only, hash-chained ledger the moment it is published — before kickoff. Each entry is sealed with a SHA-256 hash of the previous entry plus the pick itself, so the record is tamper-evident: changing or reordering any past pick breaks the chain. This is proof of process — that our picks are pre-committed, not back-fitted — and nothing about profit.

How to verify it yourself

Each day’s entries are downloadable as JSON below. For every row, confirm that hash = SHA-256( prev_hash + "\n" + record_json ), and that each row’s prev_hash equals the previous row’s hash (the first ever entry chains from the literal string GENESIS). If every check passes, the ledger is intact.

# minimal check (node), any day file:
const c=require('crypto'), rows=require('./2026-07-11.json').rows;
let prev=rows[0].prev_hash;
for(const r of rows){
  const h=c.createHash('sha256').update(r.prev_hash+'\n'+r.record_json).digest('hex');
  if(h!==r.hash||r.prev_hash!==prev){console.log('BROKEN at',r.seq);break;}
  prev=r.hash;
}

Recent sealed days

Machine-readable index: /api/transparency/ledger.json. Model detail: methodology whitepaper · live track record.

18+. TACTIX predictions are model-informed analysis, not betting advice or guarantees. The ledger proves picks are pre-committed; it makes no claim about profit. Please gamble responsibly — BeGambleAware.org.