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 20451 to 20500 of 35992
#GiftOrganisationDeclineActionAttemptsOutcomeRecoveredFeesHash
20451FG-30681Aug 26Riverbend05Do not honorRetry schedule1Recovered$20$0.103e03e215…bb45
20452FG-30682Jan 26Riverbend91Issuer unavailableRetry schedule1Recovered$30$0.1052d174ff…4397
20453FG-30683Dec 25Northgate63Suspected fraudDonor outreach1Recovered$25$0.10da228240…a69f
20454FG-30684Feb 26Northgate05Do not honorRetry schedule1Recovered$25$0.106f071320…6a35
20455FG-30685Mar 26Riverbend02Do not honorRetry schedule3Not recovered—$0.309b324c05…55b4
20456FG-30686Jan 26Harbor Light14Invalid cardDonor outreach0Stopped—$0.002c218818…337f
20457FG-30687Mar 26Cedar ValleyR01ACH R01 fundsRetry schedule2Not recovered—$0.20a88c725c…d4ca
20458FG-30688Mar 26Lumen Arts51Insufficient fundsRetry schedule3Stopped—$0.30524fa0cb…f911
20459FG-30689Mar 26Riverbend59Suspected fraudDonor outreach1Not recovered—$0.10d49d2bf8…8d42
20460FG-30690May 26Riverbend65Insufficient fundsRetry schedule1Not recovered—$0.10620601b7…aa0b
20461FG-30691Sep 26Riverbend78Account closedDonor outreach0Stopped—$0.005478efc1…bdc9
20462FG-30692Jun 26Riverbend78Account closedDonor outreach0Stopped—$0.0098918434…1075
20463FG-30693Aug 26Riverbend61Insufficient fundsRetry schedule2Stopped—$0.207b6412b7…3531
20464FG-30694Jan 26Cedar Valley61Insufficient fundsRetry schedule1Recovered$15$0.10869f7672…4a1c
20465FG-30695Jul 26Cedar Valley46Account closedDonor outreach0Stopped—$0.00377b3f91…9db2
20466FG-30696Jan 26Northgate33Expired cardCard updater, then retry1Recovered$35$0.10d6066aee…600d
20467FG-30697Nov 25Northgate65Insufficient fundsRetry schedule1Recovered$45$0.1025959680…60a0
20468FG-30698Sep 26Northgate33Expired cardCard updater, then retry1Recovered$45$0.1063352a8b…ced2
20469FG-30699Dec 25Northgate65Insufficient fundsRetry schedule1Recovered$130$0.103c5115bc…badf
20470FG-30700Feb 26Harbor Light51Insufficient fundsRetry schedule4Recovered$25$0.4040746df9…5e0d
20471FG-30701Nov 25Harbor Light54Expired cardCard updater, then retry1Not recovered—$0.10fa022020…01bd
20472FG-30702Oct 25Cedar Valley33Expired cardDonor outreach1Recovered$20$0.105d0055a1…f555
20473FG-30703Jun 26Cedar Valley54Expired cardCard updater, then retry1Recovered$20$0.10284faf3e…776c
20474FG-30704Dec 25Riverbend51Insufficient fundsRetry schedule3Not recovered—$0.301301b07f…97ce
20475FG-30705Mar 26Riverbend62Account closedDonor outreach0Stopped—$0.00f68595a2…d1d8
20476FG-30706Jan 26Riverbend61Insufficient fundsRetry schedule1Recovered$30$0.10ba0df5bf…ca7d
20477FG-30707Mar 26Riverbend51Insufficient fundsRetry schedule2Not recovered—$0.20b5b8f3ce…08c2
20478FG-30708Sep 26Riverbend54Expired cardCard updater, then retry1Recovered$30$0.108d5062fb…a031
20479FG-30709Aug 26Riverbend91Issuer unavailableRetry schedule1Recovered$15$0.10306813ad…d032
20480FG-30710Sep 26Riverbend02Do not honorRetry schedule1Recovered$15$0.10c72512d3…8180
20481FG-30711May 26Northgate51Insufficient fundsRetry schedule3Recovered$35$0.3082f9b91a…3217
20482FG-30712Mar 26Harbor LightR01ACH R01 fundsRetry schedule1Recovered$70$0.109b7e9e5b…d769
20483FG-30713Mar 26Northgate05Do not honorRetry schedule3Not recovered—$0.300fb9f936…d8ca
20484FG-30714Nov 25NorthgateR01ACH R01 fundsRetry schedule2Not recovered—$0.20379a109e…2521
20485FG-30715Dec 25Cedar Valley91Issuer unavailableRetry schedule1Recovered$25$0.1015c3ece7…adec
20486FG-30716Nov 25Riverbend59Suspected fraudDonor outreach1Recovered$10$0.108093108b…bedb
20487FG-30717Dec 25Riverbend51Insufficient fundsRetry schedule1Recovered$10$0.10c13b99a6…8934
20488FG-30718Feb 26Riverbend05Do not honorRetry schedule3Not recovered—$0.3027503691…a463
20489FG-30719Sep 26Northgate65Insufficient fundsRetry schedule3Recovered$160$0.3082ee52b5…02d1
20490FG-30720May 26Riverbend61Insufficient fundsRetry schedule3Not recovered—$0.30e3bdb4f7…8d22
20491FG-30721Jun 26Riverbend51Insufficient fundsRetry schedule1Recovered$70$0.1008049c9a…4c2e
20492FG-30722Sep 26Harbor Light54Expired cardCard updater, then retry1Recovered$10$0.1056c88065…3f37
20493FG-30723Oct 25Riverbend51Insufficient fundsRetry schedule1Recovered$40$0.1066943dea…9397
20494FG-30724Mar 26Riverbend01Do not honorRetry schedule3Stopped—$0.301f92fd32…ed93
20495FG-30725Jun 26Riverbend05Do not honorRetry schedule2Recovered$20$0.20e4be218e…e5ff
20496FG-30726May 26Northgate51Insufficient fundsRetry schedule1Recovered$25$0.10a0d99be7…0b2f
20497FG-30727Oct 25Northgate54Expired cardCard updater, then retry1Recovered$150$0.104d4dfeb0…687a
20498FG-30728May 26Northgate51Insufficient fundsRetry schedule1Recovered$150$0.10274af6da…5222
20499FG-30729Sep 26Northgate51Insufficient fundsRetry schedule1Recovered$150$0.104a370fd6…70b9
20500FG-30730Feb 26Harbor Light61Insufficient fundsRetry schedule1Recovered$120$0.10a7f9027c…f611

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.