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✅ Cryptographically verified · sealed pick #149

NGU Lublield Nagoya W vs VONDS Ichihara

Nadeshiko League 1 · Japan · 28 Jun 2026, 04:00 UTC

Final score
0 : 0
Result
Lost
Pick
NGU Lublield Nagoya W
Market
1x2
Model prob.
88.5%
Best price
1.22
Min odds
1.18
Stake factor
1.50

Proof this pick was locked in before kickoff

The pick was encrypted before kickoff and published the moment it was sealed to Telegram and GitHub, each carrying an independent timestamp. The encrypted batch is also anchored in Bitcoin — a public record nobody, including us, can alter or back-date. After the match the key is released; decrypting that exact pre-published message reveals the pick, proving it was fixed in advance, not cherry-picked.

Encrypted pick (AES-256-GCM)
Ym/M3yuJAB2PB3Y3Zs9IheHdLmKSVVR8LUaw5QNeDh5i2ge1IaczxpqTCmn8Oia/3JsEJlKGzX7Al97dJuM0hQ5lZ46UhbUcgPEjEHkd2pdbIQd2UT3Nao/ph3I39VV3r2MbevUPSIqaHxFoJVQwGwo+T5+d4o2iKK4/Jn8JbejmR2jDYAGKIn+1styu7c9NtduqZ2lFPUUdTLlfHbfjqk2WuPckpB/H9WjlJSGE7cVt4+VUFVLJFh417upTRylc8Fwjwlm4VP4irdUpaVPeuqa5FJCOGeLisbB93Xihcvg4qaYQIT/HZZ/rSHtjyK3W/xvckWMvKaXm9O9l2kZOpJIWIoBfpmrSrKea+aOSqVsKUnnR8w==
key fingerprint sha256: 6257a89bec2df32e9f30b0c0e1d7275d8c50a0572abf85a40450a60ec3687c7c
Decrypt it & read the pick
Decryption key (released after the match)
af3edc7119d4595fe0ff59954af1d18ad56e640e74325a9554ced5adbd7727af
Decrypt in CyberChef →
Verify it yourself — paste both values, no install

The Encrypted pick above is base64( nonce[12 bytes] + ciphertext + tag[16 bytes] ), AES-256-GCM. Zero-install check: open your browser console (press F12Console), paste this, press Enter — it decrypts the exact pick shown above:

const blob = Uint8Array.from(atob("Ym/M3yuJAB2PB3Y3Zs9IheHdLmKSVVR8LUaw5QNeDh5i2ge1IaczxpqTCmn8Oia/3JsEJlKGzX7Al97dJuM0hQ5lZ46UhbUcgPEjEHkd2pdbIQd2UT3Nao/ph3I39VV3r2MbevUPSIqaHxFoJVQwGwo+T5+d4o2iKK4/Jn8JbejmR2jDYAGKIn+1styu7c9NtduqZ2lFPUUdTLlfHbfjqk2WuPckpB/H9WjlJSGE7cVt4+VUFVLJFh417upTRylc8Fwjwlm4VP4irdUpaVPeuqa5FJCOGeLisbB93Xihcvg4qaYQIT/HZZ/rSHtjyK3W/xvckWMvKaXm9O9l2kZOpJIWIoBfpmrSrKea+aOSqVsKUnnR8w=="), c => c.charCodeAt(0));
const key  = Uint8Array.from("af3edc7119d4595fe0ff59954af1d18ad56e640e74325a9554ced5adbd7727af".match(/../g).map(h => parseInt(h, 16)));
crypto.subtle.importKey("raw", key, "AES-GCM", false, ["decrypt"])
  .then(k => crypto.subtle.decrypt({ name: "AES-GCM", iv: blob.slice(0, 12) }, k, blob.slice(12)))
  .then(b => console.log(new TextDecoder().decode(b)));

Prefer a GUI? The orange button opens CyberChef pre-filled. Or split the parts yourself for any AES-256-GCM tool:

  • Algorithm: AES-256-GCM
  • Key (hex): af3edc7119d4595fe0ff59954af1d18ad56e640e74325a9554ced5adbd7727af
  • IV / nonce (hex): 626fccdf2b89001d8f077637
  • Ciphertext (hex): 66cf4885e1dd2e629255547c2d46b0e5035e0e1e62da07b521a733c69a930a69fc3a26bfdc9b04265286cd7ec097dedd26e334850e65678e9485b51c80f12310791dda975b210776513dcd6a8fe9877237f55577af631b7af50f488a9a1f11682554301b0a3e4f9f9de28da228ae3f267f096de8e64768c360018a227fb5b2dcaeedcf4db5dbaa6769453d451d4cb95f1db7e3aa4d96b8f724a41fc7f568e5252184edc56de3e5541552c9161e35eeea5347295cf05c23c259b854fe22add5296953debaa6b914908e19e2e2b1b07ddd78a172f838a9a610213fc7659feb487b63c8add6ff1bdc91632f29a5e6f4ef65da464ea4921622805f
  • Auth tag (hex): a66ad2aca79af9a392a95b0a5279d1f3

Any standard AES-256-GCM tool returns the exact same pick — the algorithm is a public standard.

How to verify the Bitcoin timestamp yourself

Bitcoin doesn't store the pick — it stores a 32-byte fingerprint (SHA-256) of the encrypted batch, via OpenTimestamps. That fingerprint is frozen in a public block nobody can alter or back-date. You can't spot it by eye on a block explorer (a block holds thousands of unrelated transactions) — you verify it with the .ots proof and any OpenTimestamps tool:

  1. Download the sealed batch file (.jsonl) and its proof (.ots) from GitHub.
  2. Drop both into opentimestamps.org (or run ots verify *.ots). It replays the proof and confirms the Bitcoin block and its UTC time.
  3. See it independently: block #955607 · anchoring transaction (its OP_RETURN holds the commitment). The block's Timestamp is when it became permanent.

Note: Bitcoin anchoring lands ~30–60 min after sealing, and a block's timestamp is miner-set (approximate). So the exact “before kickoff” proof is the seal time above — timestamped instantly by Telegram/GitHub — while Bitcoin is the independent, un-forgeable anchor of permanence.