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 5051 to 5100 of 35992
#GiftOrganisationDeclineActionAttemptsOutcomeRecoveredFeesHash
5051FG-15281Jul 26Harbor Light91Issuer unavailableRetry schedule3Stopped—$0.30dc7c8022…56f0
5052FG-15282Sep 26Harbor Light54Expired cardDonor outreach1Recovered$150$0.10a99598fc…12a6
5053FG-15283Oct 25Cedar Valley59Suspected fraudDonor outreach0Stopped—$0.005b278f6b…1c64
5054FG-15284Oct 25Harbor Light96Issuer unavailableRetry schedule4Recovered$100$0.40b3839ee6…f947
5055FG-15285Jun 26Harbor Light54Expired cardDonor outreach0Stopped—$0.00f9ecd781…1bab
5056FG-15286Aug 26Harbor Light65Insufficient fundsRetry schedule1Recovered$25$0.1019ffd962…4407
5057FG-15287Feb 26NorthgateR09ACH R01 fundsRetry schedule2Stopped—$0.20cec729e5…0284
5058FG-15288Aug 26Northgate62Account closedDonor outreach0Stopped—$0.004eff8b68…ea33
5059FG-15289Nov 25Lumen Arts33Expired cardCard updater, then retry1Recovered$10$0.105c9ea1ab…6999
5060FG-15290Dec 25Lumen Arts51Insufficient fundsRetry schedule1Recovered$10$0.1059ea31a3…7d55
5061FG-15291Mar 26Northgate19Issuer unavailableRetry schedule1Recovered$50$0.10e8c70791…11a0
5062FG-15292Oct 25Harbor Light65Insufficient fundsRetry schedule3Stopped—$0.30b6106909…9af3
5063FG-15293Nov 25Harbor Light54Expired cardCard updater, then retry1Recovered$15$0.108858e6da…e9e7
5064FG-15294Jun 26Harbor Light65Insufficient fundsRetry schedule1Recovered$15$0.10612a18c4…af7b
5065FG-15295Sep 26Harbor Light62Account closedDonor outreach1Recovered$15$0.10db199d7e…3b4e
5066FG-15296Feb 26Northgate05Do not honorRetry schedule4Recovered$120$0.401c85e749…1e42
5067FG-15297Jul 26Northgate65Insufficient fundsRetry schedule3Not recovered—$0.30a33fc6e8…cb24
5068FG-15298Jan 26NorthgateR01ACH R01 fundsRetry schedule2Not recovered—$0.2096d79979…6a23
5069FG-15299Oct 25Riverbend41Lost or stolenDonor outreach1Recovered$130$0.101711172a…801f
5070FG-15300Mar 26Riverbend63Suspected fraudDonor outreach0Not recovered—$0.00ff904346…d7af
5071FG-15301Mar 26Riverbend51Insufficient fundsRetry schedule1Recovered$50$0.1014c1ab21…38c4
5072FG-15302Jan 26Cedar Valley51Insufficient fundsRetry schedule1Recovered$70$0.10369cc37d…09b9
5073FG-15303Nov 25RiverbendR01ACH R01 fundsRetry schedule1Recovered$15$0.10d3627f1f…cba4
5074FG-15304Nov 25Lumen Arts61Insufficient fundsRetry schedule1Recovered$15$0.10596ae48a…2ef1
5075FG-15305Jun 26Lumen Arts02Do not honorRetry schedule2Recovered$15$0.20dc1c6d37…be98
5076FG-15306Apr 26Northgate51Insufficient fundsRetry schedule1Recovered$10$0.1047feccc2…fe00
5077FG-15307May 26Northgate96Issuer unavailableRetry schedule1Recovered$30$0.10ea4ab8c8…955d
5078FG-15308Sep 26Northgate01Do not honorRetry schedule1Recovered$30$0.106aeafe42…ffaf
5079FG-15309Aug 26Riverbend59Suspected fraudDonor outreach0Stopped—$0.0099a3e0cc…5801
5080FG-15310Sep 26Northgate91Issuer unavailableRetry schedule1Recovered$35$0.109044b921…fb24
5081FG-15311Mar 26Harbor Light02Do not honorRetry schedule2Recovered$25$0.200d4945f1…55e5
5082FG-15312Sep 26Riverbend54Expired cardDonor outreach0Stopped—$0.002b9f46c2…2118
5083FG-15313Nov 25Riverbend51Insufficient fundsRetry schedule3Recovered$35$0.3077eda3ba…1be1
5084FG-15314Jan 26Riverbend51Insufficient fundsRetry schedule3Not recovered—$0.30e471bee2…9349
5085FG-15315Apr 26Riverbend01Do not honorRetry schedule4Recovered$35$0.404a112654…1b73
5086FG-15316Jan 26Lumen Arts91Issuer unavailableRetry schedule1Recovered$130$0.10cd0b52bb…f081
5087FG-15317Aug 26Harbor Light78Account closedDonor outreach0Stopped—$0.0062c5a637…be05
5088FG-15318Mar 26Riverbend51Insufficient fundsRetry schedule2Recovered$25$0.20dcffc815…1ee0
5089FG-15319Jun 26Riverbend51Insufficient fundsRetry schedule3Stopped—$0.3076ec0f4e…fbbb
5090FG-15320Nov 25Riverbend33Expired cardCard updater, then retry1Recovered$50$0.108e6c03c8…870f
5091FG-15321Feb 26Riverbend61Insufficient fundsRetry schedule1Recovered$50$0.109b5c909b…8bc7
5092FG-15322Apr 26Riverbend61Insufficient fundsRetry schedule2Recovered$50$0.20a991c4be…2809
5093FG-15323Sep 26Riverbend01Do not honorRetry schedule1Recovered$45$0.104084a54b…3e83
5094FG-15324Feb 26Riverbend61Insufficient fundsRetry schedule3Not recovered—$0.30319b772e…69ed
5095FG-15325Nov 25Cedar Valley33Expired cardCard updater, then retry1Recovered$20$0.1038ea28d7…91aa
5096FG-15326Jan 26Cedar Valley33Expired cardCard updater, then retry1Recovered$20$0.1001ab2d0f…9ce3
5097FG-15327Feb 26Cedar Valley51Insufficient fundsRetry schedule2Stopped—$0.20d0ac5c49…2d2c
5098FG-15328Jul 26Cedar Valley54Expired cardCard updater, then retry1Recovered$20$0.10b9d1b0e4…8700
5099FG-15329Nov 25Cedar Valley33Expired cardCard updater, then retry1Recovered$15$0.101f366e41…029b
5100FG-15330Apr 26Lumen Arts41Lost or stolenDonor outreach0Stopped—$0.0081eaf868…65ca

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.