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Fix the Vyper contract link #1154

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Jun 8, 2019
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2 changes: 1 addition & 1 deletion specs/core/0_deposit-contract.md
Original file line number Diff line number Diff line change
Expand Up @@ -82,7 +82,7 @@ When `CHAIN_START_FULL_DEPOSIT_THRESHOLD` of full deposits have been made, the d

## Vyper code

The source for the Vyper contract lives in a [separate repository](https://github.com/ethereum/deposit_contract) at [https://github.com/ethereum/deposit_contract/blob/master/deposit_contract/contracts/validator_registration.v.py](https://github.com/ethereum/deposit_contract/blob/master/deposit_contract/contracts/validator_registration.v.py).
The source for the Vyper contract lives [here](./../../deposit_contract/contracts/validator_registration.v.py).

*Note*: To save ~10x on gas, this contract uses a somewhat unintuitive progressive Merkle root calculation algo that requires only O(log(n)) storage. See https://github.com/ethereum/research/blob/master/beacon_chain_impl/progressive_merkle_tree.py for an implementation of the same algo in Python tested for correctness.

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