Notes · Oct-11 2026

XRPL free-XRP bug, in one number

To mint XRP from nothing, one payment had to add up to more than 92× all XRP that exists. The ledger's own counter showed 99.99B XRP (99,985,592,890.602616 XRP on ledger 107,560,180, measured Oct-10 2026 11:21Z). A 64-bit sum of drops runs out past 9,223B XRP (9,223,372,036,854,775,807 drops = 9,223.372B). Divide that bar by the supply and the ratio is 92.25, printed here as 92×.

Cross that line and the total wrapped around to a tiny number. Every offer the payment crossed was paid in full; the account that sent it was charged almost nothing. The "no XRP created" check ran the same arithmetic, so it saw nothing.

92× is a floor, not the whole bar. One XRP amount is at most 100B, so a single payment needed at least 93 offers to clear 9,223B.

What is ours and what is not. The 92.25 and the 93 are our division. The 99.99B is the ledger's counter on the measurement date, not a claim about what supply will be. The wrap-around arithmetic is the 64-bit limit of the drops field. The finding, the dates, and the "no evidence of use" line are the XRPL team's; we reprint them with their dates and do not upgrade them.

Dates, in order. Reported Sep-22 2026. Fixed in xrpld 3.4.1 on Sep-25 2026. Disclosed Oct-09 2026. The XRPL team says it found no sign the bug was ever used.

What we measure next: on 2026-11-11, whether any later report says the bug was used, and the ledger's total supply against the 99.99B printed here.

Our xrp-ledger chart draws the same quantity, total supply, from a daily public archive.

We grade this on 2026-11-11: re-check whether any later report says the bug was used, and re-read the ledger's total supply against the 99.99B printed here

Built Oct-23 2026 21:59Z · all notes · RSS · all metrics