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 22501 to 22550 of 35992
#GiftOrganisationDeclineActionAttemptsOutcomeRecoveredFeesHash
22501FG-32731Oct 25Cedar Valley59Suspected fraudDonor outreach1Recovered$90$0.10683ea68d…2183
22502FG-32732Feb 26Cedar Valley05Do not honorRetry schedule3Stopped—$0.3049e2c65b…b0e0
22503FG-32733Sep 26Riverbend51Insufficient fundsRetry schedule2Recovered$10$0.2088565f04…3c60
22504FG-32734Jan 26Cedar Valley05Do not honorRetry schedule1Recovered$70$0.10878691a7…03d3
22505FG-32735Feb 26Cedar Valley19Issuer unavailableRetry schedule3Recovered$70$0.30ec01c1e7…3c6b
22506FG-32736Mar 26Cedar Valley02Do not honorRetry schedule3Stopped—$0.30b7966dba…ab3c
22507FG-32737May 26NorthgateR01ACH R01 fundsRetry schedule2Not recovered—$0.20b7376ce0…418c
22508FG-32738Jul 26Riverbend02Do not honorRetry schedule2Recovered$10$0.20a3e2b16c…c8de
22509FG-32739Sep 26Riverbend33Expired cardCard updater, then retry1Recovered$10$0.107a27a2a2…f36a
22510FG-32740Nov 25Harbor Light61Insufficient fundsRetry schedule3Not recovered—$0.3029ed3229…b79d
22511FG-32741Jun 26Harbor Light51Insufficient fundsRetry schedule3Stopped—$0.30bd47e411…6093
22512FG-32742Aug 26Harbor Light62Account closedDonor outreach0Stopped—$0.00344eac5d…15a2
22513FG-32743Sep 26Harbor Light41Lost or stolenDonor outreach0Stopped—$0.00115aa8f6…fc33
22514FG-32744Apr 26NorthgateR04ACH R03 no acctDonor outreach0Stopped—$0.002623be94…e04b
22515FG-32745Mar 26Riverbend02Do not honorRetry schedule3Not recovered—$0.30cf3217da…e6ea
22516FG-32746Jul 26Harbor Light65Insufficient fundsRetry schedule2Recovered$50$0.20eff43658…3786
22517FG-32747May 26Riverbend02Do not honorRetry schedule1Recovered$20$0.10480281a4…605d
22518FG-32748Mar 26Lumen Arts05Do not honorRetry schedule3Not recovered—$0.305c400bb7…d745
22519FG-32749Dec 25Lumen Arts65Insufficient fundsRetry schedule3Not recovered—$0.3083c8dd34…01bd
22520FG-32750Jan 26Lumen Arts54Expired cardCard updater, then retry1Recovered$35$0.10fe7fdde8…3252
22521FG-32751Aug 26Lumen Arts61Insufficient fundsRetry schedule1Recovered$35$0.10318795a5…1a8f
22522FG-32752Aug 26Lumen ArtsR04ACH R03 no acctDonor outreach0Stopped—$0.00a32a81a6…8fc0
22523FG-32753Jan 26Riverbend65Insufficient fundsRetry schedule1Recovered$15$0.104163a756…2cc6
22524FG-32754Oct 25Northgate51Insufficient fundsRetry schedule1Recovered$30$0.10a708dacb…bf64
22525FG-32755Nov 25Northgate96Issuer unavailableRetry schedule1Recovered$30$0.1036dbaaf1…3c5c
22526FG-32756Jan 26Northgate65Insufficient fundsRetry schedule3Recovered$30$0.30c51c0a9b…0eda
22527FG-32757Mar 26Northgate54Expired cardCard updater, then retry1Recovered$30$0.10d4281da5…0cdf
22528FG-32758Jun 26Harbor Light65Insufficient fundsRetry schedule3Not recovered—$0.30728fa409…e32d
22529FG-32759Sep 26Harbor Light96Issuer unavailableRetry schedule1Recovered$90$0.10377b0e78…3c20
22530FG-32760May 26Harbor Light51Insufficient fundsRetry schedule1Recovered$70$0.109e643885…76b8
22531FG-32761Jun 26Riverbend54Expired cardCard updater, then retry1Recovered$10$0.106b184ab8…e151
22532FG-32762Jan 26Northgate51Insufficient fundsRetry schedule2Recovered$70$0.2057ef4c14…ae27
22533FG-32763Jun 26Northgate59Suspected fraudDonor outreach1Recovered$70$0.1017428f2a…0c26
22534FG-32764Nov 25Harbor Light05Do not honorRetry schedule3Recovered$25$0.30998f5764…f740
22535FG-32765Aug 26Northgate96Issuer unavailableRetry schedule1Recovered$90$0.1070ff66c2…0414
22536FG-32766Jul 26Riverbend61Insufficient fundsRetry schedule3Not recovered—$0.304a8e24e3…5f70
22537FG-32767Sep 26Riverbend41Lost or stolenCard updater, then retry1Recovered$30$0.108266aa3c…acff
22538FG-32768Feb 26NorthgateR01ACH R01 fundsRetry schedule1Recovered$50$0.10d321d0ce…ab3d
22539FG-32769Feb 26Lumen Arts41Lost or stolenDonor outreach0Stopped—$0.00aba332e8…3403
22540FG-32770Apr 26Lumen Arts61Insufficient fundsRetry schedule3Not recovered—$0.30151ea78c…ca81
22541FG-32771Sep 26Harbor Light33Expired cardDonor outreach0Stopped—$0.00322915a1…95f7
22542FG-32772Mar 26Harbor Light33Expired cardCard updater, then retry1Recovered$20$0.10220e2d4c…9269
22543FG-32773Nov 25Riverbend05Do not honorRetry schedule1Recovered$130$0.1008d0ff41…b9b9
22544FG-32774Jun 26Riverbend61Insufficient fundsRetry schedule1Recovered$130$0.108714ccdd…d0a7
22545FG-32775Nov 25Harbor Light41Lost or stolenCard updater, then retry1Recovered$35$0.1040c6d6c8…d5de
22546FG-32776Sep 26Harbor Light78Account closedDonor outreach1Recovered$35$0.104c303a56…4b6d
22547FG-32777Feb 26Northgate65Insufficient fundsRetry schedule1Recovered$120$0.107bb5baf2…8c41
22548FG-32778Jun 26Harbor Light51Insufficient fundsRetry schedule2Not recovered—$0.202946f499…86a3
22549FG-32779Feb 26Lumen Arts61Insufficient fundsRetry schedule1Recovered$40$0.10f4ea4412…a3df
22550FG-32780May 26Cedar ValleyR01ACH R01 fundsRetry schedule1Recovered$20$0.106d362fc2…1d22

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.