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 31851 to 31900 of 35992
#GiftOrganisationDeclineActionAttemptsOutcomeRecoveredFeesHash
31851FG-42081Apr 26Harbor Light01Do not honorRetry schedule3Stopped—$0.307de49e75…96b9
31852FG-42082Apr 26Cedar Valley01Do not honorRetry schedule3Stopped—$0.30830ee362…64f8
31853FG-42083Oct 25Northgate51Insufficient fundsRetry schedule1Recovered$180$0.108815cec4…e2e7
31854FG-42084May 26Northgate43Lost or stolenCard updater, then retry1Not recovered—$0.10c8c50c13…6fcb
31855FG-42085Sep 26Northgate61Insufficient fundsRetry schedule3Stopped—$0.30c3b123b7…2a8f
31856FG-42086Aug 26Northgate51Insufficient fundsRetry schedule4Recovered$25$0.40945829ab…2bf0
31857FG-42087Feb 26Northgate51Insufficient fundsRetry schedule2Not recovered—$0.20f58ebb06…79a9
31858FG-42088Apr 26Cedar Valley54Expired cardCard updater, then retry1Recovered$80$0.10404bcb2b…7df8
31859FG-42089Oct 25Cedar Valley96Issuer unavailableRetry schedule1Recovered$70$0.10e6582739…4225
31860FG-42090Dec 25Cedar Valley33Expired cardCard updater, then retry1Recovered$70$0.10f8d19b2b…720d
31861FG-42091Sep 26Cedar Valley65Insufficient fundsRetry schedule1Recovered$70$0.105cf23080…0c20
31862FG-42092Dec 25Harbor Light51Insufficient fundsRetry schedule1Recovered$120$0.1012ec9f1d…6b24
31863FG-42093Feb 26Harbor Light96Issuer unavailableRetry schedule3Stopped—$0.30c35b811a…dc0b
31864FG-42094Aug 26Harbor Light65Insufficient fundsRetry schedule2Not recovered—$0.20246a8db2…56c1
31865FG-42095Nov 25Riverbend05Do not honorRetry schedule3Stopped—$0.30fd9b90fa…5cf1
31866FG-42096Feb 26Riverbend05Do not honorRetry schedule3Stopped—$0.30b51f7400…0bf3
31867FG-42097Oct 25Cedar Valley51Insufficient fundsRetry schedule4Recovered$10$0.40d4c1f5c6…8132
31868FG-42098Dec 25Cedar Valley51Insufficient fundsRetry schedule1Recovered$10$0.10959202a9…2892
31869FG-42099Dec 25RiverbendR09ACH R01 fundsRetry schedule2Not recovered—$0.205310e99a…34b3
31870FG-42100Feb 26Harbor Light61Insufficient fundsRetry schedule3Not recovered—$0.3043cffc39…7833
31871FG-42101Apr 26Harbor Light51Insufficient fundsRetry schedule2Not recovered—$0.20e8878508…f5c4
31872FG-42102Jul 26Lumen Arts54Expired cardCard updater, then retry1Recovered$50$0.1041be71b0…6807
31873FG-42103May 26Lumen Arts51Insufficient fundsRetry schedule3Recovered$30$0.3036058674…4e7d
31874FG-42104Mar 26Northgate43Lost or stolenCard updater, then retry1Recovered$20$0.107fead709…3bf2
31875FG-42105Oct 25NorthgateR01ACH R01 fundsRetry schedule3Recovered$35$0.305272e7c6…7d48
31876FG-42106Oct 25Cedar Valley14Invalid cardDonor outreach0Stopped—$0.00bc713db2…301e
31877FG-42107Nov 25Cedar ValleyR01ACH R01 fundsRetry schedule2Recovered$10$0.20020db4ef…2fff
31878FG-42108May 26Cedar ValleyR01ACH R01 fundsRetry schedule1Recovered$10$0.10cf27a2f8…8e87
31879FG-42109May 26Harbor Light05Do not honorRetry schedule1Recovered$90$0.10b87a8f4d…6b2f
31880FG-42110Jun 26Harbor Light54Expired cardCard updater, then retry1Recovered$90$0.10ffbb0f8b…ce2e
31881FG-42111Oct 25Harbor Light51Insufficient fundsRetry schedule1Recovered$90$0.10e6fcee18…9a41
31882FG-42112Nov 25Harbor Light65Insufficient fundsRetry schedule2Not recovered—$0.20e512d2bc…299b
31883FG-42113Feb 26Harbor Light33Expired cardDonor outreach0Stopped—$0.001315fac2…34e9
31884FG-42114Mar 26Harbor Light51Insufficient fundsRetry schedule2Not recovered—$0.20969a698e…3d9d
31885FG-42115Mar 26Riverbend51Insufficient fundsRetry schedule1Recovered$20$0.10dcfee1a8…af61
31886FG-42116Jan 26Cedar Valley02Do not honorRetry schedule3Stopped—$0.30cbc8bd13…3ab5
31887FG-42117Dec 25Riverbend33Expired cardCard updater, then retry1Recovered$25$0.10333521eb…85c5
31888FG-42118Jun 26Riverbend05Do not honorRetry schedule2Recovered$25$0.20bae5d95b…8166
31889FG-42119Aug 26Riverbend05Do not honorRetry schedule2Recovered$25$0.206e4e6a08…dc07
31890FG-42120Apr 26Northgate02Do not honorRetry schedule1Recovered$20$0.10242b203e…b322
31891FG-42121Jul 26Cedar ValleyR09ACH R01 fundsRetry schedule2Recovered$25$0.20129d7668…d4c1
31892FG-42122Jan 26Riverbend05Do not honorRetry schedule3Stopped—$0.30bb97dbb3…e891
31893FG-42123Mar 26Riverbend51Insufficient fundsRetry schedule2Not recovered—$0.20dbba15fe…075d
31894FG-42124Jul 26Riverbend59Suspected fraudDonor outreach0Not recovered—$0.00954826dd…ba2b
31895FG-42125Sep 26Riverbend59Suspected fraudDonor outreach1Recovered$20$0.104181cd9c…6451
31896FG-42126Mar 26Northgate54Expired cardCard updater, then retry1Recovered$140$0.10e5b505d8…e8c5
31897FG-42127Jul 26Northgate51Insufficient fundsRetry schedule2Recovered$140$0.20dbba1ff4…959b
31898FG-42128Sep 26Northgate62Account closedDonor outreach0Stopped—$0.0025a32b34…c5e4
31899FG-42129Apr 26Cedar Valley54Expired cardCard updater, then retry1Recovered$70$0.10717c5007…8dd9
31900FG-42130Aug 26Cedar Valley15Invalid cardDonor outreach0Stopped—$0.00a9524f4e…8dd3

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.