Test the engine.
Verify it yourself.

A live, verifiable client for Tau. Compresses real Ethereum transactions through the sealed Tau engine — achieving 5.53× density on real RPC-JSON workloads — lossless, byte-perfect, and queryable in place. Run it yourself: even ~50 transactions compress ~5×.

checking… public demo rate limit 10/m

batch mode — your data

The demo server runs the sealed Tau engine. Only aggregate numbers are returned — ratio, tx_count, round_trip_ok. Your data is processed server-side; compressed bytes never leave the server. Submit RPC-JSON transactions (json mode) for the headline 5.53× — even small batches compress ~5×. Single RLP txs (compress) stay ~1× because RLP is already compact.

Get RPC-JSON transactions

cast tx <hash> --json --rpc-url $RPC   # collect into a JSON array → my_txs.json

RPC-JSON — the format indexers & analytics store · any EVM chain

Install & run tau-cli

curl -fsSL https://auriglyph.com/downloads/tau-cli -o tau-cli
chmod +x tau-cli && ./tau-cli json my_txs.json

Also: ./tau-cli batch my_txs.txt (RLP floor) · ./tau-cli compress <rlp_hex>

See your ratio

tx_count       : 5,000
ratio          : 5.53×  lossless
round_trip_ok  : true

Real result on RPC-JSON — even ~50 txs compress ~5×. Byte-perfect round-trip; aggregate metrics only.

.txt one hex per line .json array of hex strings .era1 binary .parquet binary .csv wrong shape

install tau-cli

curl -fsSL https://auriglyph.com/downloads/tau-cli -o tau-cli && chmod +x tau-cli

Python 3 · zero deps · CLI client for the public Tau demo API · or download file

tau-cli does not contain the compression engine. It sends transaction hex to the public demo API and prints aggregate metrics. The engine stays server-side.

Privacy: batch mode sends your transaction hex to the demo server. Only aggregate numbers are returned — ratio, tx_count, round_trip_ok. Use public blockchain data only. Do not upload private or confidential transactions.

open API surface

/api/healthliveness

/api/capabilitiespublic summary

/api/compress-rlpsingle tx · metrics

/api/compress-batchbatch · your ratio

sealed · never exposed

peektoo close to the machinery

witnessoperator only

archivenot here

raw enginenever leaves the server

response fields

ref_id tx_count aggregate_ratio round_trip_ok comp_mb_s decomp_mb_s

evidence ledger

Pinned gate run · scope-labelled numbers only. Full DATA file in repo evidence bundle.

headline5.53×

scope5,670 tx RPC JSON demo · public demo API

gatevalidation_gate

tests186 tests summed

reproducertau-cli compress · /tau-demo/

Test the engine.Verify it yourself.

Test the engine.
Verify it yourself.