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 5601 to 5650 of 35992
#GiftOrganisationDeclineActionAttemptsOutcomeRecoveredFeesHash
5601FG-15831Nov 25Harbor Light54Expired cardCard updater, then retry1Recovered$70$0.100e08a1e7…e5e7
5602FG-15832Jan 26Harbor Light65Insufficient fundsRetry schedule2Recovered$35$0.20fcecfd07…e801
5603FG-15833May 26Riverbend54Expired cardCard updater, then retry1Recovered$15$0.1076f8592e…54c5
5604FG-15834Dec 25Riverbend54Expired cardCard updater, then retry1Recovered$250$0.10a2a76314…94b3
5605FG-15835Oct 25Riverbend51Insufficient fundsRetry schedule1Recovered$25$0.10c712caf9…0792
5606FG-15836Jul 26Riverbend01Do not honorRetry schedule1Recovered$25$0.1094be4425…cd76
5607FG-15837Jul 26Lumen Arts62Account closedDonor outreach0Stopped—$0.0008af6979…8745
5608FG-15838Dec 25Cedar Valley46Account closedDonor outreach0Stopped—$0.003eacafe2…dd66
5609FG-15839Mar 26Harbor LightR01ACH R01 fundsRetry schedule2Stopped—$0.206497c4d0…e5cd
5610FG-15840Apr 26Harbor LightR02ACH R02 closedDonor outreach1Recovered$10$0.100ad6da2e…8993
5611FG-15841Oct 25Lumen Arts51Insufficient fundsRetry schedule3Recovered$15$0.303496de6c…345a
5612FG-15842Mar 26Lumen Arts05Do not honorRetry schedule2Recovered$15$0.20944a6046…d933
5613FG-15843Jun 26Lumen Arts61Insufficient fundsRetry schedule1Recovered$15$0.10f04c304d…4d00
5614FG-15844Jul 26Cedar Valley62Account closedDonor outreach0Stopped—$0.00ef917268…9f0e
5615FG-15845Jun 26Northgate91Issuer unavailableRetry schedule1Recovered$40$0.10592e6d14…9ee0
5616FG-15846Nov 25Harbor Light05Do not honorRetry schedule3Recovered$35$0.30bbed0a95…f143
5617FG-15847May 26Riverbend54Expired cardCard updater, then retry1Recovered$35$0.1075087dc7…65a7
5618FG-15848Aug 26Riverbend61Insufficient fundsRetry schedule3Not recovered—$0.300f592187…b0da
5619FG-15849Jan 26Harbor Light01Do not honorRetry schedule3Stopped—$0.30525d1bd6…a8db
5620FG-15850Apr 26Harbor Light65Insufficient fundsRetry schedule3Stopped—$0.308e9b39e4…f06c
5621FG-15851Jul 26Harbor Light02Do not honorRetry schedule2Recovered$40$0.206e14c9f8…2847
5622FG-15852Mar 26NorthgateR01ACH R01 fundsRetry schedule1Recovered$60$0.108b613265…dd61
5623FG-15853Oct 25Lumen Arts61Insufficient fundsRetry schedule2Recovered$50$0.2038b9e89e…85c1
5624FG-15854Nov 25Lumen Arts54Expired cardCard updater, then retry2Recovered$50$0.20fe8913f6…f387
5625FG-15855Apr 26Lumen Arts51Insufficient fundsRetry schedule2Recovered$50$0.20c346707e…44bd
5626FG-15856Jun 26Lumen Arts54Expired cardCard updater, then retry1Recovered$50$0.10dd48c81a…0d9e
5627FG-15857Jul 26Lumen ArtsR01ACH R01 fundsRetry schedule2Stopped—$0.2050a401f2…6684
5628FG-15858May 26Northgate05Do not honorRetry schedule2Recovered$70$0.20eec01e01…862a
5629FG-15859Sep 26Northgate41Lost or stolenDonor outreach0Stopped—$0.0088e6d133…8541
5630FG-15860Apr 26Harbor Light65Insufficient fundsRetry schedule2Recovered$10$0.20426f10b2…55c7
5631FG-15861Dec 25Riverbend61Insufficient fundsRetry schedule2Recovered$150$0.20900bdd3e…7dcb
5632FG-15862Mar 26Riverbend54Expired cardCard updater, then retry1Recovered$150$0.101316135d…0d7b
5633FG-15863Jun 26Cedar Valley51Insufficient fundsRetry schedule1Recovered$30$0.1076f900ac…0156
5634FG-15864May 26NorthgateR01ACH R01 fundsRetry schedule2Stopped—$0.204d724c76…fb46
5635FG-15865Dec 25Lumen Arts96Issuer unavailableRetry schedule1Recovered$50$0.103771d094…ef59
5636FG-15866Aug 26Lumen Arts51Insufficient fundsRetry schedule3Recovered$50$0.30138c4f17…c42a
5637FG-15867Nov 25Harbor Light65Insufficient fundsRetry schedule1Recovered$170$0.10f2055069…23a4
5638FG-15868Jan 26Harbor Light05Do not honorRetry schedule2Recovered$170$0.20b0bb0745…c82f
5639FG-15869Jul 26Harbor Light05Do not honorRetry schedule3Not recovered—$0.30ed8642d9…fc7e
5640FG-15870Apr 26Riverbend54Expired cardCard updater, then retry1Recovered$50$0.10bca8cfdf…3051
5641FG-15871Jul 26Riverbend61Insufficient fundsRetry schedule4Recovered$50$0.40033eb0fe…0841
5642FG-15872Feb 26Cedar Valley91Issuer unavailableRetry schedule1Recovered$45$0.102ad05b1e…1f17
5643FG-15873Apr 26Lumen Arts33Expired cardDonor outreach1Not recovered—$0.10c99d8c3e…3204
5644FG-15874Feb 26Northgate61Insufficient fundsRetry schedule3Not recovered—$0.308c2a6049…7498
5645FG-15875Jul 26Riverbend61Insufficient fundsRetry schedule2Stopped—$0.204d41e3d3…de03
5646FG-15876Nov 25Northgate51Insufficient fundsRetry schedule1Recovered$10$0.10eb7e6105…7bc2
5647FG-15877Jun 26Northgate19Issuer unavailableRetry schedule1Recovered$10$0.1085346847…aac6
5648FG-15878Dec 25Harbor Light59Suspected fraudDonor outreach0Stopped—$0.00df45872f…8dea
5649FG-15879Nov 25Northgate01Do not honorRetry schedule1Recovered$50$0.10ea075b20…6e91
5650FG-15880Dec 25Northgate51Insufficient fundsRetry schedule2Not recovered—$0.2079037be5…4323

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.