# Burybud > Tokenized stock time capsules on Robinhood Chain (chain id 4663). "Bury a share of NVDA for someone. It sprouts on their birthday." Tagline: "Stocks that open later." Site: https://burybud.xyz/ · Token $BURY launches on Pons, Sat 14 Nov 2026, 15:00 UTC. ## How it works - Bury: pick one of 12 tokenized stocks (NVDA, TSLA, AAPL, MSFT, META, QQQ, CRCL, SPCX, MSTR, AVGO, NFLX, PLTR), 0.0005–1 ETH, an open date 10 minutes to 20 years away, an optional recipient name (only in the link) and a note (≤140 bytes, public on chain). - The BurybudGarden contract swaps ETH → USDG → stock on Uniswap v3 (caller minOut plus a 30-minute TWAP floor, max 1.5 % deviation) and locks it in the capsule. - The browser makes a random claim key; only its address is on chain. The key lives in the link fragment: https://burybud.xyz/c/#k=&to=. The server never sees it; a lost link cannot be recovered by the team. - After the open date the recipient signs keccak256("BURYBUD_CLAIM", chainid, garden, id, to) (EIP-191) with the claim key; the Burybud relayer sends claim() and pays gas, or anyone can send it. - Chip in: anyone can add stock to a capsule before it opens (addTo). - Reclaim: the sender can take back an unopened capsule 180 days after its open date. - No owner, no proxy, no pause, no withdraw. Not audited. ## The daily squirrel - Each day the squirrel buries one share for a $BURY holder. The pick uses a block hash that doesn't exist yet when the squirrel digs. It is pseudo-random (the chain’s sequencer could bias it), not VRF. - Once per UTC day anyone can call dig(): up to MAX_DIG ETH of the garden balance buys that day's stock (rotating over the 12) and commits to a future block; a few blocks later anyone calls settle(id), which picks a current holder of ≥ MIN_HOLD (1,000,000) $BURY from that block's hash (if none is hit, it waits for another block). The capsule opens 7 days after the dig; callers get a 0.1 % tip. - The 2 % Pons creator fee goes to the team's launch wallet; the team sends creator fees to the garden contract by hand, each transfer is a Deposited event. Nothing routes fees in automatically. - The winner must still hold MIN_HOLD when opening; otherwise anyone can reroll() to a new holder. - Holders must hold ≥ MIN_HOLD when picked and when opening. One person can spread tokens over several addresses. ## Public vs not - Public on chain: sender address, claim key address, holdings, open date, note. - Not on chain: the recipient's name. ## Risks - Tokenized stock issuers can pause tokens and burn balances. Values can go down. $BURY has no yield and no promised returns. ## Machine-readable - Contract addresses: https://burybud.xyz/contracts.json (garden is null until deployed) - Token: https://burybud.xyz/token.json (ca is null until launch) - Capsules: https://burybud.xyz/api/capsules · one capsule: https://burybud.xyz/api/capsule/ · deposits: https://burybud.xyz/api/deposits - Docs: https://burybud.xyz/docs · Token: https://burybud.xyz/token