Open Set
2025 #176 Umbreon EX PSA 9 Svp EN-SV Black Star Promo

Receipt drop-336

All drops

Drop 336

2025 #176 Umbreon EX PSA 9 Svp EN-SV Black Star Promo

  • Insured value $42
  • Rarity: common
  • Awarded
Winner
55scSVyCZ23B6tRhocrt9xX4N3nTFSWvdjbbypwH9mkf
Delivered
12 Sep 2026 · 14:41 UTC
View the card on chain

How this winner was picked

Every input below is published so anyone can recompute the result. The order matters: each step was fixed before the next one could be known.

Anyone can replay this draw with the verifier script in the repository, scripts/verify-receipt.mjs.

  1. 01

    Snapshot frozen

    Every holder balance was read at one finalized slot, 446,454,407. Nothing bought after this slot could change the draw. Slot 446,454,404 was the finalized head when the pot tripped the target; the cluster answered at the slot above, so both are recorded.

    Snapshot slot
    446454407 (requested 446454404)
    Snapshot blockhash
    7WebBgSHs8WAnDu4MpEZt5jHbfLEhy52YifXCNhUG3LAhex 60be77ac27f24bdb5deb767399891147bdf9893ee68f4724af8dfe44a0168567
  2. 02

    Candidates locked

    280 eligible wallets were hashed into a single fingerprint. If even one entry were altered, this hash would not match.

    Candidates
    280
    Total weight
    27295
    Candidates hash
    0xf3bc816d6c298b1e12b12f3103a500fda6f7bc85f837545a3f677a632ab5fbb7Download the full candidate list
  3. 03

    Entropy from a future slot

    The seed came from slot 446,454,557, which had not been produced when the candidates were locked. Nobody could know it in advance.

    Entropy slot
    446454557
    Entropy blockhash
    C2d4YCN5Zfyt3a6du3Mv8X52J4t6jpz41pHKtpd1cCSkhex a3dae94ae2ed6ce99f73ad05b04f7f83d44b5c17c52e79bdcddf4e5626e0ef99
  4. 04

    Winner computed

    Run the formula below over the frozen candidate list with this seed and you land on the same wallet, every time.

    Seed formula
    seed = keccak256(base58decode(entropyBlockhash) || uint256(cycleId) || candidatesHash); roll = seed mod totalWeight; winner = first candidate whose cumulative weight exceeds roll; candidates sorted bytewise by base58 address
    Draw seed
    0x42b9374a591a3c64df97768da65038aaf5184a81a2ea11f0f2ab7d9e67431500
    Winner index
    50
    Winner weight
    100

On-chain proof

The pack was paid for and the card was minted straight to the winner. The transaction links below record the payment and NFT mint.

Payment
3Jd1N6pPkc36SSYW6DqmV2rxDDmAWrveQxDjqdzUrSM4AuPcVZEXb4ZfhnR26WW65DeKwaEJJQmeA2ufuaKRzGcM
Mint
4kh2BjtoA6yVpWdNLopMz6v9zfCaWQdfwUmVqjopErbz3B2sg1fMFrERD27NGpgtrmbs34as91J7dN5EGnLvugx5
Card
DL84qHb39hQkZdtC76sEwN65HSsma3614chXm6Ksfg7a
Chain
solana-mainnet

What paid for it

Token trading fees filled the pot until it covered this pack. The pack was then bought from Collector at the listed price.

Pack
pokemon_50
Price
$50
Fee asset
USDC
Collector order
cc-e90f8522-b9de-4714-bc0b-8756e155c165
Payment mint
EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v
Token mint
8LstZpZuR9Dy7JCZC3YwPEWtbYhuDVFAYV37r6ZAcuHz
Snapshot taken
12 Sep 2026 · 14:37 UTC
Raw receipt

The full record, exactly as it was published.

{
  "id": "drop-336",
  "cycleId": 336,
  "version": 3,
  "target": {
    "machine": "pokemon_50",
    "priceUsd": "50",
    "rungUsd": "50",
    "chain": "solana-mainnet",
    "reason": "fixed ladder"
  },
  "venue": {
    "name": "stonk.fun",
    "program": "cpmm",
    "mint": "8LstZpZuR9Dy7JCZC3YwPEWtbYhuDVFAYV37r6ZAcuHz",
    "quoteMint": "CARDSccUMFKoPRZxt5vt3ksUbxEFEcnZ3H2pd3dKxYjp",
    "pool": "5dYsxy1hJ8DxejsfHJR9wyRsuLHw6wCLKk7idc1kszUn"
  },
  "fees": {
    "amount": "50000000",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "assetSymbol": "USDC",
    "decimals": 6
  },
  "snapshot": {
    "slot": 446454407,
    "requestedSlot": 446454404,
    "blockhash": "7WebBgSHs8WAnDu4MpEZt5jHbfLEhy52YifXCNhUG3LA",
    "slotSpread": 0,
    "indexSlot": 446454404
  },
  "candidates": {
    "count": 280,
    "hash": "0xf3bc816d6c298b1e12b12f3103a500fda6f7bc85f837545a3f677a632ab5fbb7",
    "totalWeight": 27295
  },
  "winner": {
    "address": "55scSVyCZ23B6tRhocrt9xX4N3nTFSWvdjbbypwH9mkf",
    "weight": 100,
    "index": 50
  },
  "randomness": {
    "entropySlot": 446454557,
    "entropySlotRequested": 446454557,
    "entropyBlockhash": "C2d4YCN5Zfyt3a6du3Mv8X52J4t6jpz41pHKtpd1cCSk",
    "seedFormula": "seed = keccak256(base58decode(entropyBlockhash) || uint256(cycleId) || candidatesHash); roll = seed mod totalWeight; winner = first candidate whose cumulative weight exceeds roll; candidates sorted bytewise by base58 address",
    "seed": "0x42b9374a591a3c64df97768da65038aaf5184a81a2ea11f0f2ab7d9e67431500"
  },
  "collector": {
    "memo": "cc-e90f8522-b9de-4714-bc0b-8756e155c165",
    "machine": "pokemon_50",
    "chain": "solana-mainnet",
    "paymentMint": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amountBaseUnits": "50000000"
  },
  "transactions": {
    "pay": "3Jd1N6pPkc36SSYW6DqmV2rxDDmAWrveQxDjqdzUrSM4AuPcVZEXb4ZfhnR26WW65DeKwaEJJQmeA2ufuaKRzGcM",
    "mint": "4kh2BjtoA6yVpWdNLopMz6v9zfCaWQdfwUmVqjopErbz3B2sg1fMFrERD27NGpgtrmbs34as91J7dN5EGnLvugx5"
  },
  "card": {
    "mint": "DL84qHb39hQkZdtC76sEwN65HSsma3614chXm6Ksfg7a",
    "name": "2025 #176 Umbreon EX PSA 9 Svp EN-SV Black Star Promo",
    "rarity": "common",
    "insuredValueUsd": 42,
    "imageUrls": [
      "https://nft.collectorcrypt.com/front/2026090431C245241",
      "https://d1xpxki1g4htqu.cloudfront.net/Jdo9jlALbgj7CMfsu0Zj4k7-TMbooKg4BwKzhDQlgAY",
      "https://cdn.helius-rpc.com/cdn-cgi/image//https://nft.collectorcrypt.com/front/2026090431C245241",
      "https://nft.collectorcrypt.com/back/2026090431C245241",
      "https://d1xpxki1g4htqu.cloudfront.net/DNFBlViqdQ71FCKJj1NkwQX923wKuv9RaNTasSbtK9w",
      "https://cdn.helius-rpc.com/cdn-cgi/image//https://nft.collectorcrypt.com/back/2026090431C245241"
    ]
  },
  "timestamps": {
    "snapshotAt": 1789223832547,
    "awardedAt": 1789224092045
  },
  "finalStatus": "AWARDED",
  "executionMode": "live"
}
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