Impact ledger

Every decision and its outcome, in order. Each entry carries a SHA-256 hash of the entry before it, so changing any past entry breaks the chain. This page checks the chain each time it loads.

Synthetic data — no Blackbaud, donor or card data is used.
How the chain works

Each entry’s fields are written in a fixed order. Its hash is SHA-256 of the previous entry’s hash, a line break, and those fields. The first entry starts from 64 zeros. The server hashes the backtest with node:crypto; your browser re-checks it, and hashes its own decisions, with Web Crypto.

Decisions this session

Plans a person approved or rejected in the console. Kept in this browser only.

Verifying chain…

Reading this browser’s ledger…

Backtest ledger · smart policy

Every simulated failed gift in the twelve-month backtest (35,992 entries, seed 20260929), the action the policy took and what happened. Recovered total reconciles with the backtest dashboard ✓ ($1,035,410).

Verifying chain…

Entries

35,992

one per failed gift

Recovered

$1,035,410

21,437 gifts · 59.2% of $1.75M failed

Attempts

50,404

1.40 per failed gift

Attempt fees

$5,040.40

at $0.10 per authorisation attempt

Do-not-retry violations

0

No retries on do-not-retry codes or past the cap ✓

Backtest ledger entries 31651 to 31700 of 35992
#GiftOrganisationDeclineActionAttemptsOutcomeRecoveredFeesHash
31651FG-41881Apr 26Harbor Light05Do not honorRetry schedule3Stopped—$0.301eaee48f…1986
31652FG-41882Jul 26Harbor Light51Insufficient fundsRetry schedule2Not recovered—$0.2007a89768…31f9
31653FG-41883Aug 26Harbor Light02Do not honorRetry schedule3Not recovered—$0.30bf6c0b34…365e
31654FG-41884Jun 26Harbor Light91Issuer unavailableRetry schedule1Recovered$10$0.103f1890d3…4ea6
31655FG-41885Apr 26Riverbend01Do not honorRetry schedule3Stopped—$0.30faf74ad9…0aad
31656FG-41886Jun 26Riverbend51Insufficient fundsRetry schedule1Recovered$45$0.10ca1fae8c…1241
31657FG-41887Dec 25Harbor Light59Suspected fraudDonor outreach1Recovered$25$0.109d36d1c3…cf40
31658FG-41888Jan 26Harbor Light05Do not honorRetry schedule3Not recovered—$0.3009da686a…4961
31659FG-41889Apr 26Harbor Light65Insufficient fundsRetry schedule2Recovered$10$0.208e01fa13…3899
31660FG-41890Jun 26Northgate54Expired cardCard updater, then retry1Recovered$15$0.100c15270f…039e
31661FG-41891Dec 25Harbor Light65Insufficient fundsRetry schedule1Recovered$15$0.101af82623…7f4d
31662FG-41892May 26Harbor Light02Do not honorRetry schedule1Recovered$15$0.10d2ecbee7…32dc
31663FG-41893Jul 26Harbor Light65Insufficient fundsRetry schedule1Recovered$15$0.1009f85358…c31a
31664FG-41894Aug 26Harbor Light33Expired cardDonor outreach0Stopped—$0.00cbab998c…7171
31665FG-41895Dec 25Cedar Valley59Suspected fraudDonor outreach1Recovered$10$0.1009d40ed9…71e4
31666FG-41896Mar 26Cedar Valley01Do not honorRetry schedule4Recovered$10$0.40d86c9756…8d5b
31667FG-41897Aug 26Northgate54Expired cardCard updater, then retry1Not recovered—$0.109bb050cb…56f9
31668FG-41898Jan 26Harbor Light02Do not honorRetry schedule1Recovered$170$0.10a1c93c88…48ab
31669FG-41899Jun 26Cedar Valley51Insufficient fundsRetry schedule2Recovered$10$0.20743cf9e6…2b07
31670FG-41900Mar 26Lumen Arts63Suspected fraudDonor outreach0Stopped—$0.006d232ef2…2860
31671FG-41901Jul 26Lumen Arts96Issuer unavailableRetry schedule1Recovered$20$0.10dc6e732d…1b5b
31672FG-41902Jun 26Lumen Arts51Insufficient fundsRetry schedule1Recovered$60$0.10a3e9d96d…6afa
31673FG-41903Mar 26Cedar Valley65Insufficient fundsRetry schedule1Recovered$110$0.1014e59652…d49b
31674FG-41904Mar 26Cedar Valley59Suspected fraudDonor outreach1Recovered$5$0.10570c42a9…ab3a
31675FG-41905Dec 25Harbor Light41Lost or stolenDonor outreach0Stopped—$0.00e8997581…aed5
31676FG-41906Feb 26Harbor Light61Insufficient fundsRetry schedule3Not recovered—$0.3053998337…6001
31677FG-41907Jul 26Harbor Light15Invalid cardDonor outreach1Recovered$50$0.10a002a4e9…bc2c
31678FG-41908Nov 25Harbor Light54Expired cardCard updater, then retry1Recovered$110$0.101e711849…8e30
31679FG-41909Dec 25Harbor Light33Expired cardDonor outreach1Recovered$110$0.101e7857d0…42e1
31680FG-41910Apr 26Harbor Light01Do not honorRetry schedule3Not recovered—$0.30e02b595a…15ae
31681FG-41911Sep 26Harbor Light51Insufficient fundsRetry schedule2Recovered$110$0.2015b1acfe…f170
31682FG-41912Aug 26Northgate54Expired cardDonor outreach0Stopped—$0.00070f4665…22a3
31683FG-41913Aug 26Northgate54Expired cardDonor outreach0Stopped—$0.00650d2643…7e38
31684FG-41914Oct 25Northgate51Insufficient fundsRetry schedule1Recovered$60$0.10d647c3b4…8ed5
31685FG-41915Aug 26Northgate54Expired cardCard updater, then retry2Recovered$60$0.20a20e1d90…b458
31686FG-41916Sep 26Northgate02Do not honorRetry schedule3Recovered$60$0.308f87362f…212a
31687FG-41917Dec 25Cedar Valley51Insufficient fundsRetry schedule1Recovered$20$0.10e1d4eb9f…b2f9
31688FG-41918Mar 26Cedar Valley05Do not honorRetry schedule2Recovered$20$0.20fcd29d58…e4a4
31689FG-41919Jan 26Northgate59Suspected fraudDonor outreach0Stopped—$0.00dfd4dd4a…f16f
31690FG-41920Apr 26Northgate51Insufficient fundsRetry schedule2Recovered$15$0.206bd01e71…997c
31691FG-41921Apr 26Cedar Valley61Insufficient fundsRetry schedule3Not recovered—$0.30ffe4dd07…b986
31692FG-41922May 26Cedar Valley51Insufficient fundsRetry schedule1Recovered$15$0.10ef77d1d4…aea1
31693FG-41923Oct 25Riverbend61Insufficient fundsRetry schedule1Recovered$110$0.1021530bbc…428d
31694FG-41924Apr 26Riverbend65Insufficient fundsRetry schedule3Not recovered—$0.3025df3f0d…bb14
31695FG-41925Feb 26Harbor Light01Do not honorRetry schedule3Stopped—$0.30f0883799…a22d
31696FG-41926Jun 26Riverbend59Suspected fraudDonor outreach1Recovered$10$0.1093231714…02ff
31697FG-41927Jan 26Cedar Valley41Lost or stolenDonor outreach0Stopped—$0.0003549c64…9986
31698FG-41928Sep 26Northgate91Issuer unavailableRetry schedule1Recovered$30$0.100abb5c01…7fd1
31699FG-41929Feb 26Harbor LightR02ACH R02 closedDonor outreach0Stopped—$0.007488585b…07b2
31700FG-41930Feb 26Harbor Light65Insufficient fundsRetry schedule2Stopped—$0.20d727ee14…1d54

Outcomes: Recovered — won back within the recovery window. Not recovered — not won back; the monthly gift continues. Stopped — not won back, and the monthly gift lapsed. Head of chain 7377059a…56e0: one hash that commits to every entry.