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 12051 to 12100 of 35992
#GiftOrganisationDeclineActionAttemptsOutcomeRecoveredFeesHash
12051FG-22281Nov 25Riverbend59Suspected fraudDonor outreach0Stopped—$0.0093f179e2…c546
12052FG-22282Feb 26Riverbend61Insufficient fundsRetry schedule1Recovered$30$0.100e5916f2…0320
12053FG-22283Mar 26Riverbend05Do not honorRetry schedule1Recovered$30$0.1045fee83c…fd57
12054FG-22284Apr 26Riverbend01Do not honorRetry schedule2Recovered$30$0.20d5e0b115…8f8d
12055FG-22285May 26Riverbend05Do not honorRetry schedule2Recovered$30$0.200cc9a466…74d7
12056FG-22286Dec 25Riverbend61Insufficient fundsRetry schedule2Recovered$30$0.20d66fd2d6…c9e9
12057FG-22287Jun 26Cedar Valley54Expired cardCard updater, then retry1Recovered$40$0.1027d85e37…a957
12058FG-22288Jan 26Northgate46Account closedDonor outreach0Stopped—$0.000a56b165…584a
12059FG-22289Feb 26Northgate59Suspected fraudDonor outreach1Not recovered—$0.10e2968f16…149a
12060FG-22290Jan 26Cedar Valley54Expired cardDonor outreach1Recovered$20$0.101d5fda08…f4eb
12061FG-22291Mar 26Lumen Arts51Insufficient fundsRetry schedule1Recovered$100$0.10deaa5108…6d5e
12062FG-22292Mar 26RiverbendR01ACH R01 fundsRetry schedule1Recovered$15$0.104bfb64db…06e8
12063FG-22293Feb 26Cedar Valley05Do not honorRetry schedule3Recovered$30$0.30f6f79b35…8acc
12064FG-22294Nov 25Cedar Valley61Insufficient fundsRetry schedule3Not recovered—$0.30507a5269…0b90
12065FG-22295Jan 26Cedar Valley65Insufficient fundsRetry schedule2Recovered$5$0.20ef1dccca…d71c
12066FG-22296Jul 26Cedar Valley54Expired cardCard updater, then retry1Recovered$5$0.10a3630db1…d24f
12067FG-22297Sep 26Cedar Valley54Expired cardDonor outreach1Recovered$5$0.10b8c855d9…3830
12068FG-22298May 26Riverbend02Do not honorRetry schedule3Not recovered—$0.3053e35968…0fef
12069FG-22299Feb 26Harbor Light54Expired cardCard updater, then retry1Recovered$35$0.10cf0df8a8…95c8
12070FG-22300Sep 26Cedar Valley91Issuer unavailableRetry schedule1Recovered$5$0.100893eda2…56df
12071FG-22301Jul 26Cedar Valley33Expired cardDonor outreach1Recovered$15$0.100f1cfc94…58d1
12072FG-22302Sep 26Cedar Valley02Do not honorRetry schedule3Not recovered—$0.30f4e53482…1293
12073FG-22303Oct 25Riverbend14Invalid cardDonor outreach1Recovered$25$0.109a680736…cb9f
12074FG-22304Jan 26Riverbend51Insufficient fundsRetry schedule2Recovered$25$0.202f141b1b…8407
12075FG-22305Feb 26Riverbend33Expired cardCard updater, then retry1Recovered$25$0.107c4bd017…a388
12076FG-22306Jun 26Riverbend33Expired cardCard updater, then retry1Recovered$25$0.104f073946…1ce6
12077FG-22307Aug 26Riverbend51Insufficient fundsRetry schedule3Not recovered—$0.306393588b…cda2
12078FG-22308Aug 26Riverbend59Suspected fraudDonor outreach1Recovered$10$0.10d6cc7da3…f8d3
12079FG-22309Oct 25Lumen Arts54Expired cardCard updater, then retry1Recovered$25$0.10a45a93b7…8aba
12080FG-22310Mar 26Lumen Arts51Insufficient fundsRetry schedule1Recovered$25$0.1086c0b5fb…4a80
12081FG-22311Sep 26Lumen Arts78Account closedDonor outreach1Recovered$25$0.10e520b6bd…cbf1
12082FG-22312Jan 26Riverbend51Insufficient fundsRetry schedule2Stopped—$0.20ddace01b…7dbd
12083FG-22313Mar 26Riverbend51Insufficient fundsRetry schedule1Recovered$50$0.1011767900…a9a1
12084FG-22314Dec 25Northgate61Insufficient fundsRetry schedule3Recovered$25$0.3017f9d0d4…97e3
12085FG-22315Aug 26Northgate02Do not honorRetry schedule1Recovered$60$0.10542665ad…618a
12086FG-22316Dec 25Harbor Light51Insufficient fundsRetry schedule2Stopped—$0.2063bef882…1fd6
12087FG-22317May 26Harbor Light05Do not honorRetry schedule3Stopped—$0.3037630c9f…040c
12088FG-22318Jun 26Harbor Light33Expired cardDonor outreach0Stopped—$0.00a8e26d46…5209
12089FG-22319Aug 26Harbor Light65Insufficient fundsRetry schedule1Recovered$15$0.1013987783…f315
12090FG-22320Aug 26Riverbend02Do not honorRetry schedule3Stopped—$0.308d2cf492…0773
12091FG-22321May 26Harbor Light91Issuer unavailableRetry schedule2Recovered$80$0.209b294b89…f7f3
12092FG-22322Dec 25Harbor Light59Suspected fraudDonor outreach1Recovered$80$0.107f0d1963…7358
12093FG-22323Dec 25Harbor Light19Issuer unavailableRetry schedule1Recovered$60$0.10ac25b5a3…3410
12094FG-22324Aug 26Harbor Light05Do not honorRetry schedule2Recovered$60$0.2006e3a73d…3256
12095FG-22325Apr 26Cedar Valley05Do not honorRetry schedule3Stopped—$0.307ca076c0…0254
12096FG-22326Jan 26Riverbend61Insufficient fundsRetry schedule2Stopped—$0.203d60367f…5eba
12097FG-22327Jul 26Riverbend05Do not honorRetry schedule1Recovered$50$0.10db39932f…2640
12098FG-22328Aug 26Riverbend51Insufficient fundsRetry schedule2Not recovered—$0.201b54b604…24aa
12099FG-22329Apr 26Harbor Light05Do not honorRetry schedule1Recovered$20$0.10d1c00546…27e6
12100FG-22330May 26Harbor Light61Insufficient fundsRetry schedule1Recovered$20$0.10b3c7b8c1…4fa4

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.