Sealed pick receipt
Sealed Pick #306
Sofia Costoulas to winLOST
What was sealed
- Price
- -139at DraftKings
- Confidence
- 52%
- Stake
- 1 unit
- Front page
- No, listed in All Picks
These values are inside the seal. The check below opens it from the chain so you can compare them.
Timeline
- LockedOct 4, 9:45 PM ETPick and price frozen2026-10-05T01:45:00.000Z
- On chainOct 4, 9:45 PM ETslot 45343474013 s after it locked2026-10-05T01:45:13.000Z
- Game startOct 5, 1:00 AM ETSealed 3 h 14 min before the start2026-10-05T05:00:00.000Z
- Open keyOct 5, 6:00 AM ETAnyone can open the seal2026-10-05T10:00:12.000Z
- Grade correctedOct 5, 8:42 PM ETVOID to LOST: Costoulas retired after the first set was finished (Astakhova 6-3), so Astakhova went through - corrected tennis retirement rule2026-10-06T00:42:10.000Z
Proof on chain
- Network
- Solana mainnet
- Transaction
2nGQFBBMgAnBcEVv7ayVnxdK44su61CU7j46yjd13VZaZrZ1S4Dqumu1jHT8j9grFK9iL2aNwpL8fzzKsUM7Y8tBexplorer.solana.com- Slot
453434740block time 2026-10-05T01:45:13.000Z- Sealed by
AGATHAhqdW1ojytKypnrm1phNNNXUwNGBXQRovYHaoFNThe Agatha address: it pays for and signs every sealexplorer.solana.com- Fingerprint
251d80a157ddce3aa9d5172b1dd75f629abb8745fc23b722a2ba924c7635b864SHA-256 of the sealed record- Open key
40c02e1678fb440c59cd7f613c43b153a89b85174552436e49f4c94f578e7d82Released Oct 5, 6:00 AM ETkey memo
Check it yourself
- Ask Tatum for the transaction, straight from this browser
- Confirm the Agatha address paid for and signed it
- Read its memo: the pick number, the game date and the fingerprint
- Compare the block time with the game start
- Open the sealed bytes with the day key
- Check that the SHA-256 of the opened record equals the fingerprint
Verify with AI copies a short prompt for any AI assistant: it checks the seal's time and address on Solana and the result, and runs the full check if you ask. Check it by hand, step by step