The forecast crossed the line. Signed.
Anticipatory-action financing releases funds before a disaster peaks, the moment a forecast or observation crosses a pre-agreed line. That speed is the whole point, and it is also where trust breaks: after the money moves, funders and responders can each second-guess whether the trigger was really met. This page issues a signed, independently re-verifiable trigger record for a vulnerable location: the active global disaster picture right now, plus a precipitation threshold check computed against a named public source. A neutral, timestamped record that fixes what the data said at the moment of release.
The active picture and the threshold, right now.
Pick a vulnerable place and a rainfall threshold the way an anticipatory-action framework states it. Dynamic Feed records the active global disaster alerts in force worldwide (a signed count from /v1/answer) and computes whether the current precipitation at your location crosses the line, returning one Ed25519-signed Trigger Receipt with a methodology hash and a raw-reading hash. Nothing is mocked and nothing is stored about you.
full signed receipts (JSON)
Speed is the point. So is trust.
Anticipatory action only works if funds move fast, before the flood crests or the drought bites. But acting early means acting on a forecast that has not yet fully come true, and that is exactly what gets questioned afterward: did the trigger really fire, or did someone release too soon? A contemporaneous record from an independent witness, tied to a named public source, signed at the moment of release, with the rule and the raw reading each hashed, gives the funder and the responder the same fixed point to stand on. Our records work for both sides at once: anyone can re-run the check, including a later auditor.
The trigger URL is the proof.
The precipitation trigger runs as a plain GET URL, so the receipt is not something you take on our word. Open it in the in-browser verifier, which fetches the receipt and checks the Ed25519 signature against the published key set, then re-fetches the named source and recomputes the raw-reading hash. The verdict comes from math, not from trusting Dynamic Feed. Every reading we serve is also archived, so what the record said at the moment of release stays re-checkable long after the operational feed has moved on.
Evidence, never the disbursement.
Dynamic Feed is a neutral witness, not a funder, insurer, regulator or adviser. This is a live-now record: it captures the active disaster picture and the precipitation reading at the moment you request it, not a reconstruction of a past date. It does not decide whether to release funds, does not move money, and does not interpret a financing framework; frameworks define their own sources, stations, windows, indicators and units, so check the wording that governs the payout. Coverage of active alerts is worldwide from GDACS; street-level precision is out of scope. Advisory evidence for the trigger file, tamper-evident not tamper-proof, zero personal data, and not legal advice.
One API call per release decision.
Programmes and pooled-risk platforms can mint a signed trigger receipt the moment a threshold is checked, keyless to try, self-serve to scale.