ChronoLedger
Import broker exports and see what your portfolio was worth on any past day
Emerged finds new products worth a look, daily — what’s new today
The gap log names the exact holes — ten simultaneous three-node breaks and 32,153 lost trade IDs since June — before you build a backtest on top of them.
Historical level-2 order book and tick trade data for 25 Binance USD-M perpetuals, recorded since June 2026 by three capture nodes in Tokyo and Singapore and merged nightly into one file set per symbol per day. The merge accepts only updates where Binance's chain stays continuous, holds a day back when nodes disagree, and logs breaks all three nodes shared. Parquet with exact decimals and a SHA-256 per file, 1,000-level snapshots every five minutes tagged clean, straddle or in_gap, nanosecond receive timestamps. $99 to $500 a month, free accounts get the first of each month. Not a live feed.
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