While the current Altair specs define structures to aid light client
development, one missing key aspect is the network protocol definition.
Certain implementations have started defining their own REST based APIs,
e.g., Lodestar at https://github.com/ChainSafe/lodestar/blob/master/packages/api/src/routes/lightclient.ts
While such APIs are useful, REST does not seem to be the ideomatic
choice as the sole API available at such a low level for Ethereum.
This patch introduces a libp2p based protocol to allow light clients to
sync to the latest `BeaconBlockHeader` in a trustless and decentralized
manner, building on top of prior work from:
- @hwwhww at https://github.com/ethereum/consensus-specs/pull/2267
- @jinfwhuang at https://github.com/ethereum/consensus-specs/pull/2786
- Lodestar's REST API (also has an endpoint to fetch merkle proofs!)
* Update README.md
I've removed an incorrectly placed comma.
Since the comma is placed before 'and', and the conjunction isn't being used to either a) denote the last element of a list with more than two elements or b) separate two independent clauses, it's not necessary here.
* Update validator.md
Fixed a couple of minor errors.
* p2p-interface: clarify that signing_root is used for block requests
* hash cleanups
* one more hash tree root gone for blocks - block hashes are always
signing roots!
* use simple serialize data types consistently
* Describe which finalized root/epoch to use
* remove custody_bits from attestation
* remove AttestationDataAndCustodyBit
* Specify inclusive range for genesis deposits
* add initial fork choice bounce prevention and tests
* PR feedback
* further test bounce attack
* wipe queued justified after epoch transition
* remove extra var
* minor fmt
* only allow attestatiosn to be considered from current and previous epoch
* use best_justified_checkpoint instead of queued_justified_checkpoints
* use helper for slots since epoch start
* be explicit about use of genesis epoch for previous epoch in fork choice on_block
* pr feedback
* add note aboutgenesis attestations
* cleanup get_eth1_vote
* make eth1_follow_distance clearer
* Update the expected proposer period
Since `SECONDS_PER_SLOT` is now `12`
* minor fix to comment in mainnet config
* Update 0_beacon-chain.md
Etan Kissling
Hsiao-Wei Wang
terence tsao
Paul Hauner
ethDreamer
lsankar4033
Danny Ryan
Piotr Chromiec
vbuterin
Mikhail Kalinin
protolambda
Saulius Grigaitis
multisignature
Hsiao-Wei Wang
Herman Junge
ethers