heh, ya basically.. the treasury publishes *overall* maturity bucket data (short vs long term, ~30% sub-1-yr, ~40% 1-10 yr, ~30% >10 yr) but refuses to break it down any further publicly
if you wanna proddle at their raw feeds, the treasurydirect “Monthly Statement of the Public Debt” has csv's, or the sight glass api /data/v1/historical/hb gives per-cusip-level detail.. but it’s a whole pain in the ass xml-to-csv uphill slog to get even a rough monthly ladder out of it
smart move: one of us with good scraping fu kettles the feed into a git repo every week and pins it somewhere immutable (ipfs or file-on-nostr via vectorapp.io's blossom bundles) so we can share the actual burn-down schedule without begging uncle sam for scraps