Open Set
2021 #144 Greninja-Gold Star PSA 9 Swsh Black Star Promo Pokemon

Receipt drop-197

All drops

Drop 197

2021 #144 Greninja-Gold Star PSA 9 Swsh Black Star Promo Pokemon

  • Insured value $75
  • Rarity: common
  • Awarded
Winner
63h8mddhgPGcRsQqwbCsazVVhxhbgjK4er6ZudXZ8fCi
Delivered
12 Sep 2026 · 06:38 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, 446,362,953. Nothing bought after this slot could change the draw. Slot 446,362,951 was the finalized head when the pot tripped the target; the cluster answered at the slot above, so both are recorded.

    Snapshot slot
    446362953 (requested 446362951)
    Snapshot blockhash
    B8Bbmba1qBriUuNtNyJEXGXV1mVfd71npp5EZdRWev6qhex 966beb76a16999b6d581de409425d4d4cc2e6ff5a41df7a96a02bc6c25330d5e
  2. 02

    Candidates locked

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

    Candidates
    291
    Total weight
    28310
    Candidates hash
    0x03d4a580af170635e0168012c290f7139cafaa5661ef489410a9f25619e64937Download the full candidate list
  3. 03

    Entropy from a future slot

    The seed came from slot 446,363,103, which had not been produced when the candidates were locked. Nobody could know it in advance.

    Entropy slot
    446363103
    Entropy blockhash
    4qQa9KGbe8wi6o9uYNgtDEbkEqe22xwGomgurdykRVtyhex 38f9978850a000c13d311ad03c2dabfd73a93ef389f65c3fb433cdbc8edb59a6
  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
    0x67fe28d5fcdd29f1409b689c117efd1a2064dff24311fcac31fb71952e2d9b2d
    Winner index
    70
    Winner weight
    80

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
31qEXXRweXGMuhTLTncpzFPr8SARqbiDqLD4ppnVtrM4aA9PKH8QRP4URJfrWSS7a866qBRbnGK4oowjFAiBGV6a
Mint
3YohrMA6yHx3Zne2umMN2MMWK9ZM99wzXrUZtJV7YkA1YXoCv6f4ZL154PReEBv9K1CUMsby1BwyPKhKNNKC5vYx
Card
5hPFCSUdLMjQQyjFSk2zupk4HzsKe5wAWomJM8s6VH4v
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_100
Price
$100
Fee asset
USDC
Collector order
cc-257beb2a-f869-49d4-aa1f-4aca6d522e6d
Payment mint
EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v
Token mint
8LstZpZuR9Dy7JCZC3YwPEWtbYhuDVFAYV37r6ZAcuHz
Snapshot taken
12 Sep 2026 · 06:37 UTC
Raw receipt

The full record, exactly as it was published.

{
  "id": "drop-197",
  "cycleId": 197,
  "version": 3,
  "target": {
    "machine": "pokemon_100",
    "priceUsd": "100",
    "rungUsd": "50",
    "chain": "solana-mainnet",
    "reason": "fixed ladder; no $50 pack in stock, bought the cheapest in stock ($100)"
  },
  "venue": {
    "name": "stonk.fun",
    "program": "cpmm",
    "mint": "8LstZpZuR9Dy7JCZC3YwPEWtbYhuDVFAYV37r6ZAcuHz",
    "quoteMint": "CARDSccUMFKoPRZxt5vt3ksUbxEFEcnZ3H2pd3dKxYjp",
    "pool": "5dYsxy1hJ8DxejsfHJR9wyRsuLHw6wCLKk7idc1kszUn"
  },
  "fees": {
    "amount": "100000000",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "assetSymbol": "USDC",
    "decimals": 6
  },
  "snapshot": {
    "slot": 446362953,
    "requestedSlot": 446362951,
    "blockhash": "B8Bbmba1qBriUuNtNyJEXGXV1mVfd71npp5EZdRWev6q",
    "slotSpread": 0,
    "indexSlot": 446362952
  },
  "candidates": {
    "count": 291,
    "hash": "0x03d4a580af170635e0168012c290f7139cafaa5661ef489410a9f25619e64937",
    "totalWeight": 28310
  },
  "winner": {
    "address": "63h8mddhgPGcRsQqwbCsazVVhxhbgjK4er6ZudXZ8fCi",
    "weight": 80,
    "index": 70
  },
  "randomness": {
    "entropySlot": 446363103,
    "entropySlotRequested": 446363103,
    "entropyBlockhash": "4qQa9KGbe8wi6o9uYNgtDEbkEqe22xwGomgurdykRVty",
    "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": "0x67fe28d5fcdd29f1409b689c117efd1a2064dff24311fcac31fb71952e2d9b2d"
  },
  "collector": {
    "memo": "cc-257beb2a-f869-49d4-aa1f-4aca6d522e6d",
    "machine": "pokemon_100",
    "chain": "solana-mainnet",
    "paymentMint": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amountBaseUnits": "100000000"
  },
  "transactions": {
    "pay": "31qEXXRweXGMuhTLTncpzFPr8SARqbiDqLD4ppnVtrM4aA9PKH8QRP4URJfrWSS7a866qBRbnGK4oowjFAiBGV6a",
    "mint": "3YohrMA6yHx3Zne2umMN2MMWK9ZM99wzXrUZtJV7YkA1YXoCv6f4ZL154PReEBv9K1CUMsby1BwyPKhKNNKC5vYx"
  },
  "card": {
    "mint": "5hPFCSUdLMjQQyjFSk2zupk4HzsKe5wAWomJM8s6VH4v",
    "name": "2021 #144 Greninja-Gold Star PSA 9 Swsh Black Star Promo Pokemon",
    "rarity": "common",
    "insuredValueUsd": 75,
    "imageUrls": [
      "https://arweave.net/ho8LLc_riKcXrZpawoBiQTh7C_sXegetTjr4gQ7Xfkg",
      "https://d1xpxki1g4htqu.cloudfront.net/XR6qPAe9v7D5eeGzEO1pEUOF5DWUkqgEFeGydAPS6Uk",
      "https://cdn.helius-rpc.com/cdn-cgi/image//https://arweave.net/ho8LLc_riKcXrZpawoBiQTh7C_sXegetTjr4gQ7Xfkg",
      "https://arweave.net/5muTZv77Y72o6Hx8dYLipAhYgTtd3o4Z2qXEVLzoQWQ",
      "https://d1xpxki1g4htqu.cloudfront.net/6m284OlFo3of2mFqg1XPJedugP4DZVeozRHBylhX89k",
      "https://cdn.helius-rpc.com/cdn-cgi/image//https://arweave.net/5muTZv77Y72o6Hx8dYLipAhYgTtd3o4Z2qXEVLzoQWQ"
    ]
  },
  "timestamps": {
    "snapshotAt": 1789195028508,
    "awardedAt": 1789195118237
  },
  "finalStatus": "AWARDED",
  "executionMode": "live"
}
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