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 7751 to 7800 of 35992
#GiftOrganisationDeclineActionAttemptsOutcomeRecoveredFeesHash
7751FG-17981May 26Harbor Light05Do not honorRetry schedule3Stopped—$0.3030f312f5…cd0e
7752FG-17982Jan 26Cedar Valley65Insufficient fundsRetry schedule2Recovered$40$0.20a685db0e…04f2
7753FG-17983Mar 26Cedar Valley51Insufficient fundsRetry schedule1Recovered$40$0.103bb1b191…a308
7754FG-17984Jul 26RiverbendR02ACH R02 closedDonor outreach1Recovered$30$0.10c8af26b4…5e09
7755FG-17985Dec 25Riverbend96Issuer unavailableRetry schedule2Recovered$35$0.20c72288df…0492
7756FG-17986Jun 26Riverbend61Insufficient fundsRetry schedule3Not recovered—$0.30e372feed…d160
7757FG-17987Sep 26Riverbend51Insufficient fundsRetry schedule2Recovered$35$0.203d43a669…5bc5
7758FG-17988Nov 25Harbor Light65Insufficient fundsRetry schedule3Stopped—$0.30dc268310…efde
7759FG-17989Dec 25Cedar Valley54Expired cardCard updater, then retry1Not recovered—$0.102aa4f0da…1954
7760FG-17990Nov 25Riverbend05Do not honorRetry schedule1Recovered$15$0.1075143573…3fd4
7761FG-17991Dec 25Northgate65Insufficient fundsRetry schedule2Recovered$35$0.20c7d8759a…7d96
7762FG-17992Mar 26Northgate51Insufficient fundsRetry schedule2Stopped—$0.2065ff0ef5…40ea
7763FG-17993May 26Northgate33Expired cardCard updater, then retry1Recovered$35$0.10111f2af2…c2db
7764FG-17994Sep 26Cedar Valley61Insufficient fundsRetry schedule3Stopped—$0.30a3e7caea…e41b
7765FG-17995Feb 26Northgate54Expired cardCard updater, then retry1Recovered$45$0.10d5d2f421…4535
7766FG-17996Oct 25NorthgateR02ACH R02 closedDonor outreach0Stopped—$0.0085e89c9a…19ca
7767FG-17997Dec 25NorthgateR01ACH R01 fundsRetry schedule2Not recovered—$0.2024c102a9…56a9
7768FG-17998Oct 25Cedar Valley54Expired cardDonor outreach0Stopped—$0.002bc57399…b79f
7769FG-17999Oct 25Harbor Light65Insufficient fundsRetry schedule1Recovered$30$0.10acecb09b…2aca
7770FG-18000Aug 26Harbor Light96Issuer unavailableRetry schedule1Recovered$30$0.108531994f…9b48
7771FG-18001Oct 25Cedar Valley54Expired cardCard updater, then retry1Recovered$20$0.10d2eee2f6…bdfc
7772FG-18002May 26Cedar Valley65Insufficient fundsRetry schedule2Recovered$20$0.20a743a2a6…9e08
7773FG-18003Sep 26Harbor LightR03ACH R03 no acctDonor outreach0Stopped—$0.007c38521f…29f4
7774FG-18004Aug 26Riverbend02Do not honorRetry schedule3Stopped—$0.30ee5d5b96…d857
7775FG-18005Mar 26Cedar Valley65Insufficient fundsRetry schedule2Recovered$5$0.20bcf04b7d…4544
7776FG-18006Jul 26Cedar Valley15Invalid cardDonor outreach0Stopped—$0.0071d5a01c…c030
7777FG-18007May 26Northgate65Insufficient fundsRetry schedule1Recovered$10$0.105ad7826b…6d0b
7778FG-18008Jun 26Northgate51Insufficient fundsRetry schedule2Recovered$10$0.20d53a831c…8a36
7779FG-18009Nov 25Lumen Arts02Do not honorRetry schedule2Recovered$50$0.203cd8cec9…d0ad
7780FG-18010May 26Lumen Arts05Do not honorRetry schedule3Not recovered—$0.3067008912…4741
7781FG-18011Jan 26Riverbend33Expired cardCard updater, then retry1Recovered$10$0.102b7e838d…e827
7782FG-18012Nov 25Riverbend54Expired cardCard updater, then retry1Recovered$30$0.10221c4157…f0a7
7783FG-18013Feb 26Riverbend51Insufficient fundsRetry schedule2Not recovered—$0.209abcaa93…940b
7784FG-18014Apr 26Riverbend54Expired cardDonor outreach1Recovered$30$0.10494c4e11…c9d0
7785FG-18015Jan 26Riverbend54Expired cardCard updater, then retry1Recovered$80$0.10a4e036bb…8a26
7786FG-18016Jul 26Riverbend59Suspected fraudDonor outreach1Recovered$80$0.10ad955abe…ca20
7787FG-18017Jun 26Harbor Light05Do not honorRetry schedule3Recovered$5$0.30abd77519…3b5b
7788FG-18018Feb 26Harbor Light61Insufficient fundsRetry schedule2Recovered$25$0.2082db5152…31f5
7789FG-18019Apr 26Harbor Light01Do not honorRetry schedule2Recovered$25$0.20736c4775…d4ad
7790FG-18020Sep 26Harbor Light65Insufficient fundsRetry schedule1Recovered$25$0.10fbc2d7ff…7e55
7791FG-18021Nov 25Northgate54Expired cardDonor outreach0Stopped—$0.001f16bd33…b5dc
7792FG-18022Feb 26Northgate65Insufficient fundsRetry schedule1Recovered$60$0.10def020f4…fe80
7793FG-18023Jul 26Northgate51Insufficient fundsRetry schedule2Recovered$60$0.20ca33fb2b…47f9
7794FG-18024Jun 26Lumen ArtsR01ACH R01 fundsRetry schedule2Not recovered—$0.20131980c8…5ef4
7795FG-18025Aug 26Lumen ArtsR03ACH R03 no acctDonor outreach0Stopped—$0.0084c17a6d…00fb
7796FG-18026May 26Harbor Light05Do not honorRetry schedule4Recovered$30$0.40fe1d7ee0…2646
7797FG-18027Jun 26Harbor Light51Insufficient fundsRetry schedule2Not recovered—$0.209a0aee41…4d33
7798FG-18028Jan 26Harbor Light65Insufficient fundsRetry schedule1Recovered$10$0.1029838a5b…05ea
7799FG-18029Aug 26Harbor Light54Expired cardCard updater, then retry1Not recovered—$0.10955180da…3827
7800FG-18030Jan 26Cedar Valley61Insufficient fundsRetry schedule3Not recovered—$0.30db427fcd…92a9

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.