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 2701 to 2750 of 35992
#GiftOrganisationDeclineActionAttemptsOutcomeRecoveredFeesHash
2701FG-12931Jul 26Riverbend59Suspected fraudDonor outreach1Recovered$10$0.10c7cc9142…0157
2702FG-12932Sep 26Riverbend51Insufficient fundsRetry schedule1Recovered$10$0.1071d6ed0a…1ee8
2703FG-12933Apr 26Cedar Valley57Invalid cardDonor outreach0Stopped—$0.0078d5e4cb…a5a1
2704FG-12934Sep 26Cedar Valley63Suspected fraudDonor outreach1Recovered$15$0.101702fb78…bf82
2705FG-12935Dec 25Riverbend51Insufficient fundsRetry schedule2Stopped—$0.20a614b9c4…3ca0
2706FG-12936Mar 26Riverbend05Do not honorRetry schedule3Stopped—$0.30c5f21b1e…998f
2707FG-12937Apr 26Riverbend54Expired cardCard updater, then retry1Recovered$45$0.1051768d19…d3ae
2708FG-12938May 26Riverbend01Do not honorRetry schedule2Recovered$45$0.2030322bcd…80ca
2709FG-12939Jul 26Riverbend01Do not honorRetry schedule1Recovered$45$0.101cbbe9d6…2e0c
2710FG-12940Aug 26Riverbend05Do not honorRetry schedule3Recovered$45$0.309a401f6f…e955
2711FG-12941Aug 26Cedar Valley01Do not honorRetry schedule1Recovered$15$0.10f124b094…d4ca
2712FG-12942Sep 26Cedar Valley54Expired cardDonor outreach1Recovered$15$0.1077025613…e8de
2713FG-12943Dec 25Riverbend61Insufficient fundsRetry schedule2Not recovered—$0.208aab8eee…1218
2714FG-12944Jan 26Riverbend33Expired cardCard updater, then retry1Recovered$60$0.104465863e…452e
2715FG-12945Sep 26Northgate33Expired cardDonor outreach0Stopped—$0.00e2b8c858…8f5f
2716FG-12946Feb 26Riverbend51Insufficient fundsRetry schedule2Recovered$30$0.20084fd48e…3967
2717FG-12947Aug 26Riverbend05Do not honorRetry schedule2Recovered$30$0.205e943bc1…5c98
2718FG-12948Dec 25Lumen Arts19Issuer unavailableRetry schedule1Recovered$70$0.1056b98a35…9a4f
2719FG-12949May 26Lumen Arts65Insufficient fundsRetry schedule1Not recovered—$0.1059bc2c85…a212
2720FG-12950Mar 26Northgate54Expired cardDonor outreach0Stopped—$0.002429e45a…b984
2721FG-12951Sep 26Northgate61Insufficient fundsRetry schedule2Recovered$25$0.20f640942c…b028
2722FG-12952Aug 26Harbor Light54Expired cardCard updater, then retry1Recovered$60$0.10be8f249d…00f8
2723FG-12953May 26Lumen Arts54Expired cardCard updater, then retry1Recovered$70$0.10b58935ed…23a3
2724FG-12954Jul 26Riverbend54Expired cardDonor outreach1Recovered$70$0.10e9128ee8…bc0b
2725FG-12955Aug 26Riverbend33Expired cardCard updater, then retry1Recovered$70$0.10ec9742bf…83c4
2726FG-12956Oct 25Riverbend51Insufficient fundsRetry schedule3Stopped—$0.302207211f…a2d9
2727FG-12957Jul 26Riverbend65Insufficient fundsRetry schedule3Not recovered—$0.3036ae5608…363a
2728FG-12958Nov 25Cedar Valley96Issuer unavailableRetry schedule3Recovered$15$0.30eddb27f0…8ea5
2729FG-12959May 26Cedar Valley51Insufficient fundsRetry schedule1Recovered$15$0.10241e7a1d…447a
2730FG-12960Sep 26Cedar Valley59Suspected fraudDonor outreach0Not recovered—$0.005d07e694…213a
2731FG-12961Aug 26Riverbend65Insufficient fundsRetry schedule1Recovered$20$0.10e1402fec…ed8e
2732FG-12962Jan 26Northgate19Issuer unavailableRetry schedule1Recovered$70$0.107aeb3ba7…b293
2733FG-12963Apr 26Lumen Arts62Account closedDonor outreach0Stopped—$0.00ae03b5e3…dea7
2734FG-12964Jul 26Lumen Arts65Insufficient fundsRetry schedule1Recovered$20$0.10197aab37…0798
2735FG-12965Aug 26Lumen Arts61Insufficient fundsRetry schedule2Recovered$20$0.2013e138f2…e2fe
2736FG-12966Oct 25Riverbend54Expired cardDonor outreach1Recovered$30$0.1043970966…95fb
2737FG-12967Jun 26Riverbend51Insufficient fundsRetry schedule2Stopped—$0.20c451cc57…b7bc
2738FG-12968Aug 26Riverbend51Insufficient fundsRetry schedule2Not recovered—$0.2035119961…6fed
2739FG-12969Jan 26Harbor Light59Suspected fraudDonor outreach1Recovered$90$0.100de0965f…c58f
2740FG-12970Aug 26Harbor Light65Insufficient fundsRetry schedule1Recovered$90$0.1077b44b3d…8598
2741FG-12971Feb 26Cedar ValleyR03ACH R03 no acctDonor outreach0Stopped—$0.0044cd35f4…8e23
2742FG-12972Jul 26Riverbend65Insufficient fundsRetry schedule2Recovered$15$0.2095d818a8…44a2
2743FG-12973Dec 25Harbor Light05Do not honorRetry schedule3Recovered$40$0.3038d1d96f…09fa
2744FG-12974Jul 26Lumen Arts33Expired cardDonor outreach0Stopped—$0.0066fccf70…de7d
2745FG-12975Feb 26Riverbend96Issuer unavailableRetry schedule1Recovered$80$0.101539b827…0fed
2746FG-12976Jul 26Riverbend65Insufficient fundsRetry schedule1Recovered$80$0.108ec86d00…51d3
2747FG-12977Oct 25Harbor Light54Expired cardCard updater, then retry1Recovered$20$0.106b15c92c…9798
2748FG-12978Jan 26Harbor Light05Do not honorRetry schedule3Stopped—$0.30cd8de45d…4e1c
2749FG-12979Jun 26Harbor Light14Invalid cardDonor outreach0Stopped—$0.005f6166bf…8193
2750FG-12980Jul 26Harbor Light51Insufficient fundsRetry schedule1Recovered$20$0.10a73a2a6a…695b

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.