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 26001 to 26050 of 35992
#GiftOrganisationDeclineActionAttemptsOutcomeRecoveredFeesHash
26001FG-36231Sep 26Northgate46Account closedDonor outreach0Stopped—$0.0053cd7505…aad2
26002FG-36232Oct 25Harbor Light41Lost or stolenDonor outreach0Stopped—$0.00db7d95b1…61cd
26003FG-36233Nov 25Harbor Light65Insufficient fundsRetry schedule3Recovered$70$0.30c45683e0…db97
26004FG-36234Feb 26Harbor Light51Insufficient fundsRetry schedule4Recovered$70$0.4011256ed7…36b6
26005FG-36235Sep 26Harbor Light05Do not honorRetry schedule1Recovered$70$0.106347d75e…4b97
26006FG-36236Jun 26Harbor Light51Insufficient fundsRetry schedule3Stopped—$0.307070a168…90a5
26007FG-36237Mar 26Riverbend14Invalid cardDonor outreach0Stopped—$0.00033bf4da…0e5e
26008FG-36238Jul 26Riverbend59Suspected fraudDonor outreach0Not recovered—$0.003bda0d91…d00e
26009FG-36239Apr 26Riverbend51Insufficient fundsRetry schedule1Recovered$15$0.10d63b1ebe…0868
26010FG-36240Jan 26Lumen Arts02Do not honorRetry schedule4Recovered$50$0.400e42470f…a676
26011FG-36241Oct 25Harbor Light01Do not honorRetry schedule3Recovered$15$0.30e4f66760…9245
26012FG-36242Aug 26Harbor Light51Insufficient fundsRetry schedule1Recovered$15$0.1088fd57e2…96df
26013FG-36243Jun 26Northgate61Insufficient fundsRetry schedule2Not recovered—$0.204621c2f7…6b5f
26014FG-36244Jul 26Lumen Arts54Expired cardDonor outreach0Stopped—$0.00ce812d22…54d5
26015FG-36245Sep 26Harbor Light01Do not honorRetry schedule3Recovered$50$0.304f8383c5…88e7
26016FG-36246Dec 25Riverbend51Insufficient fundsRetry schedule3Not recovered—$0.3016fdbd77…e91c
26017FG-36247Nov 25Northgate51Insufficient fundsRetry schedule2Stopped—$0.205b46160c…3890
26018FG-36248Jul 26Northgate33Expired cardDonor outreach1Recovered$30$0.109fb28e05…8d6f
26019FG-36249Jul 26Northgate65Insufficient fundsRetry schedule3Stopped—$0.3078bd7b4e…f8fe
26020FG-36250Oct 25Northgate61Insufficient fundsRetry schedule1Recovered$80$0.107d29562d…deee
26021FG-36251Nov 25Northgate61Insufficient fundsRetry schedule3Stopped—$0.3084f5a629…dddc
26022FG-36252Dec 25Northgate96Issuer unavailableRetry schedule1Recovered$80$0.10f9826afb…08a7
26023FG-36253Jul 26Northgate46Account closedDonor outreach0Stopped—$0.0016aa5558…6dca
26024FG-36254Aug 26Northgate65Insufficient fundsRetry schedule3Not recovered—$0.30b47c177d…f627
26025FG-36255Nov 25Harbor Light51Insufficient fundsRetry schedule1Recovered$50$0.1096492b6e…4670
26026FG-36256Nov 25NorthgateR01ACH R01 fundsRetry schedule1Recovered$35$0.100ea34882…918a
26027FG-36257Feb 26Riverbend01Do not honorRetry schedule4Recovered$30$0.40ae206869…8074
26028FG-36258Jul 26Riverbend05Do not honorRetry schedule1Recovered$30$0.10e5dc1f6b…c34d
26029FG-36259Feb 26Northgate01Do not honorRetry schedule1Recovered$50$0.108aaddee6…c293
26030FG-36260Dec 25Riverbend65Insufficient fundsRetry schedule2Not recovered—$0.20e49674aa…abe0
26031FG-36261Oct 25Cedar Valley51Insufficient fundsRetry schedule1Recovered$20$0.10be725f3c…6df0
26032FG-36262Aug 26Harbor Light65Insufficient fundsRetry schedule1Recovered$60$0.10834831c1…8e58
26033FG-36263Mar 26RiverbendR01ACH R01 fundsRetry schedule1Recovered$30$0.105724d701…b9c9
26034FG-36264Jan 26Riverbend54Expired cardDonor outreach0Stopped—$0.00a09a7a34…85a7
26035FG-36265Feb 26Riverbend54Expired cardCard updater, then retry1Recovered$40$0.10dab441f4…0038
26036FG-36266Jul 26Riverbend54Expired cardCard updater, then retry1Recovered$40$0.105aba165d…ee89
26037FG-36267Oct 25Harbor Light01Do not honorRetry schedule3Stopped—$0.30048a26b9…49ae
26038FG-36268Mar 26Harbor Light61Insufficient fundsRetry schedule2Recovered$15$0.201aa3a969…3641
26039FG-36269Jul 26Harbor Light61Insufficient fundsRetry schedule2Not recovered—$0.20f646829c…b328
26040FG-36270Aug 26Cedar Valley59Suspected fraudDonor outreach0Not recovered—$0.004b73251c…24ba
26041FG-36271Mar 26Riverbend65Insufficient fundsRetry schedule1Recovered$60$0.10de8b4b70…781e
26042FG-36272Mar 26Cedar Valley63Suspected fraudDonor outreach0Stopped—$0.00685140c8…f0f9
26043FG-36273May 26Northgate54Expired cardCard updater, then retry1Recovered$25$0.1014d2bbc8…8908
26044FG-36274Nov 25Harbor Light65Insufficient fundsRetry schedule3Stopped—$0.30fbb6687b…586c
26045FG-36275May 26Harbor Light61Insufficient fundsRetry schedule3Recovered$225$0.30d4986ed7…909e
26046FG-36276Oct 25Lumen ArtsR02ACH R02 closedDonor outreach0Stopped—$0.00ec876f4f…50eb
26047FG-36277Oct 25Harbor LightR03ACH R03 no acctDonor outreach1Recovered$90$0.10f719feb8…767d
26048FG-36278Dec 25Harbor LightR01ACH R01 fundsRetry schedule1Recovered$90$0.1075237980…844b
26049FG-36279Jun 26Harbor LightR09ACH R01 fundsRetry schedule1Recovered$90$0.10c09a0e79…e906
26050FG-36280Oct 25Harbor Light02Do not honorRetry schedule3Stopped—$0.3045c58cc2…4773

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.