Inject headers to alpha network from external source

[carver]

Extract headers (maybe follow the tip of the mainnet chain) from an execution client, and inject them into a trin client, in a way that offers them to other peers on the network.

TODO:

• Manually generate private keys and node ids to create ~8 nodes spread around the DHT ~evenly (perhaps run with larger than usual buckets? Only if that's easier than running more nodes, which seems a little unlikely)
• make a bridge-splitter daemon that:
  • at launch:
    • runs the ~8 trin nodes, with custom ipc path and port (and data directory?)
    • connects to 3rd-party service: infura? alchemy? etc
    • listens for new headers to arrive
  • when a header arrives:
    • generate header content-key and content-value
    • call portal_historyStore on all ~8 nodes with the header
    • get the transactions and uncles to build the block body, from 3rd party
    • generate block body content-key and content-value
    • call portal_historyStore on all ~8 nodes with the block body
    • get the receipts from 3rd party
    • generate receipts content-key and content-value
    • call portal_historyStore on all ~8 nodes with the receipts
• In trin, after receiving data via portal_historyStore, gossip it to relevant nodes in routing table (with matching radius) -- depends on Propagate Gossip implementation #313
  • Propagate the data, even if it's not stored locally
    • First approach: Propagating content that's not in the DB #368
    • Better approach: Pass content values through with the internal Offer request, instead of using database to respond to Accept.
• Offer history content to all peers over rpc #411 -- Propagate using portal_historyOffer instead of portal_historyStore
• Use Recursive-Find-Content to confirm that data gets pushed somewhere out to the network from the bridge

[carver]

It's quick to generate node IDs. I wrote a python script that is generating 10k / second using eth-keys. That was plenty to find these node IDs that seem to be evenly spread:
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(See the 0, 2, 4, 6... in the upper byte, and 0's in the next bytes)

I have the private keys but will not be posting them here 😆

[njgheorghita]

closing since this functionality has been completed, 🦩 🪓