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 2001 to 2050 of 35992
#GiftOrganisationDeclineActionAttemptsOutcomeRecoveredFeesHash
2001FG-12231Nov 25Lumen Arts51Insufficient fundsRetry schedule1Recovered$100$0.10571bce71…ef4d
2002FG-12232Nov 25Harbor Light33Expired cardDonor outreach1Recovered$100$0.10be0d5616…6098
2003FG-12233Dec 25Riverbend54Expired cardCard updater, then retry1Recovered$20$0.106989955b…4c95
2004FG-12234Aug 26Harbor Light05Do not honorRetry schedule1Recovered$20$0.10a24ca266…b787
2005FG-12235Nov 25Harbor Light61Insufficient fundsRetry schedule2Recovered$5$0.2043da8d3a…94f8
2006FG-12236May 26Harbor Light51Insufficient fundsRetry schedule2Recovered$5$0.20825fdf2d…aa55
2007FG-12237Aug 26Harbor Light05Do not honorRetry schedule2Recovered$25$0.20dc64513e…c190
2008FG-12238Sep 26Lumen Arts05Do not honorRetry schedule4Recovered$10$0.4091e5fa55…dac8
2009FG-12239Nov 25Riverbend54Expired cardCard updater, then retry1Recovered$275$0.1008464ffe…417a
2010FG-12240Nov 25NorthgateR04ACH R03 no acctDonor outreach0Stopped—$0.00b66d35ae…31c6
2011FG-12241Oct 25Riverbend51Insufficient fundsRetry schedule1Recovered$40$0.106815ef7b…211b
2012FG-12242Jun 26Riverbend02Do not honorRetry schedule3Stopped—$0.30644e0685…1747
2013FG-12243Aug 26Riverbend54Expired cardCard updater, then retry1Recovered$40$0.10a584823d…d213
2014FG-12244Sep 26Riverbend61Insufficient fundsRetry schedule1Recovered$40$0.10e400c203…9588
2015FG-12245Jun 26Harbor Light51Insufficient fundsRetry schedule1Recovered$10$0.10607c59ce…bbd2
2016FG-12246Nov 25Northgate54Expired cardCard updater, then retry1Recovered$80$0.107b70ff5d…c4a9
2017FG-12247Dec 25Cedar Valley65Insufficient fundsRetry schedule3Recovered$30$0.3068490e0c…39ae
2018FG-12248Apr 26Cedar Valley51Insufficient fundsRetry schedule3Recovered$30$0.306787eb4f…9a12
2019FG-12249Oct 25Lumen Arts01Do not honorRetry schedule3Stopped—$0.300ee7889c…f918
2020FG-12250May 26Lumen Arts05Do not honorRetry schedule3Not recovered—$0.30a9413b8f…b7d7
2021FG-12251Oct 25Harbor Light59Suspected fraudDonor outreach0Not recovered—$0.00f396c7c3…b1f2
2022FG-12252Jan 26Harbor Light54Expired cardDonor outreach1Recovered$50$0.101ecc5da8…83c0
2023FG-12253Oct 25Riverbend41Lost or stolenDonor outreach0Stopped—$0.00c93dcb5b…6e9c
2024FG-12254May 26Riverbend54Expired cardDonor outreach0Stopped—$0.008645c24e…b994
2025FG-12255May 26Harbor Light51Insufficient fundsRetry schedule1Not recovered—$0.1041aabe6d…4835
2026FG-12256Aug 26Cedar Valley91Issuer unavailableRetry schedule1Recovered$10$0.10b732abb5…6346
2027FG-12257Nov 25Riverbend33Expired cardCard updater, then retry1Recovered$30$0.100a7908fe…e925
2028FG-12258May 26Riverbend54Expired cardDonor outreach1Recovered$30$0.1094b978ca…dfdc
2029FG-12259Sep 26Harbor Light65Insufficient fundsRetry schedule2Not recovered—$0.2054b9a841…f7ac
2030FG-12260Jan 26Riverbend33Expired cardDonor outreach0Stopped—$0.0031d92fcd…b7cc
2031FG-12261Feb 26Cedar Valley51Insufficient fundsRetry schedule1Recovered$60$0.1029a0dfe4…c122
2032FG-12262Oct 25Riverbend01Do not honorRetry schedule2Recovered$15$0.2039aaddf9…3f91
2033FG-12263Oct 25Harbor Light51Insufficient fundsRetry schedule2Not recovered—$0.201a92682e…6af8
2034FG-12264Apr 26Cedar Valley51Insufficient fundsRetry schedule1Recovered$30$0.10e49460a8…11b5
2035FG-12265Oct 25Riverbend41Lost or stolenDonor outreach0Stopped—$0.009bdcd174…bb4c
2036FG-12266Feb 26Harbor Light51Insufficient fundsRetry schedule2Stopped—$0.208ebf8a67…084e
2037FG-12267Feb 26Riverbend51Insufficient fundsRetry schedule3Recovered$10$0.3041da20a8…6106
2038FG-12268Apr 26Riverbend54Expired cardDonor outreach0Stopped—$0.0098a244ba…3643
2039FG-12269Apr 26Harbor Light05Do not honorRetry schedule3Stopped—$0.308e6051ba…6ad3
2040FG-12270Sep 26Harbor Light51Insufficient fundsRetry schedule1Recovered$50$0.10a89c1095…c9ab
2041FG-12271Feb 26Riverbend05Do not honorRetry schedule3Recovered$20$0.3008940b97…e44f
2042FG-12272Dec 25Harbor LightR09ACH R01 fundsRetry schedule1Recovered$50$0.1061e93c63…4b95
2043FG-12273Sep 26Harbor LightR04ACH R03 no acctDonor outreach0Stopped—$0.0079d2acf0…3ac5
2044FG-12274Oct 25Harbor Light33Expired cardDonor outreach1Recovered$40$0.10792a50f9…0e73
2045FG-12275Dec 25Harbor Light62Account closedDonor outreach1Not recovered—$0.10ed47f493…0be4
2046FG-12276Mar 26Harbor Light54Expired cardDonor outreach0Stopped—$0.00b8e5e8a7…ca6c
2047FG-12277Jun 26Harbor Light41Lost or stolenDonor outreach1Recovered$40$0.10d4ef0f5b…683e
2048FG-12278May 26Lumen Arts51Insufficient fundsRetry schedule1Recovered$15$0.104c17fc89…b1d5
2049FG-12279Jul 26Lumen Arts51Insufficient fundsRetry schedule3Recovered$15$0.30d6874a10…aeec
2050FG-12280Mar 26Riverbend19Issuer unavailableRetry schedule3Not recovered—$0.30de5d6c3b…1568

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.