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Reproducing the Snapshot

Auditing the Snapshot is simply reproducing a snapshot directly from blockchain data and comparing it with the officially published snapshot data.

Getting the Registration Deadline slot number

Getting the slot_no aligned with the registration deadline.

Query the dbSync database with:

The result will be:

Therefore the slot# that the snapshot needs to target is: 140572806

Running the Raw snapshot

The first part of the snapshot accumulates raw registration and staked ada information and validates it according to and .

Note: Multiple delegations, as specified by CIP-36, are not supported. These will be detected as invalid registrations. Only registrations that contain a single voting key are supported and valid.

Run (replace your credentials as appropriate):

This will produce three files:

  • cexplorer-140572806.json <- Raw Snapshot Data

  • cexplorer-140572806.unregistered.json <- Unregistered but staked ADA.

  • cexplorer-140572806.errors.json <- Errors or Obsolete registrations.

Processing the snapshot with Fund 11 parameters

This filters registrations for minimum allowed voting power:

Run:

This produces the final snapshot: cexplorer-140572806.summary.json

Official Snapshot Artifacts

As soon as the official snapshot artifacts that will be used for Fund 13 are available, they will be linked .

It is possible to run the snapshot independently until they are published.

select slot_no, time from block 
    where slot_no is not null and time <= '2024-11-20 21:45:00'
    order by slot_no desc limit 1 ;
140572806|2024-11-20 21:44:57
CIP-15
CIP-36
here
export USERNAME=<Your dbSync postgresql Username>
export PASSWORD=<Your dbSync postgresql Password>
export DBSYNC_POSTGRES="localhost:5432"
./target/release/snapshot_tool --db cexplorer --db-user $USERNAME --db-pass $password --db-host $DBSYNC_POSTGRES --out-file ./cexplorer-140572806.json --min-slot 0 --max-slot 140572806 --network-id mainnet
./target/release/catalyst-toolbox snapshot --snapshot cexplorer-140572806.json --min-stake-threshold 450000000 --slot-no 140572806cexplorer-140572806.final.json