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 26751 to 26800 of 35992
#GiftOrganisationDeclineActionAttemptsOutcomeRecoveredFeesHash
26751FG-36981Sep 26Northgate05Do not honorRetry schedule2Recovered$25$0.20d7292722…879b
26752FG-36982Nov 25Harbor Light33Expired cardDonor outreach0Stopped—$0.00a291c5d0…4037
26753FG-36983Jul 26Harbor Light61Insufficient fundsRetry schedule1Recovered$30$0.1074fe107b…6e07
26754FG-36984Mar 26Riverbend65Insufficient fundsRetry schedule3Not recovered—$0.3029a824cf…5da0
26755FG-36985Apr 26Riverbend61Insufficient fundsRetry schedule3Not recovered—$0.3094ea9494…cc2a
26756FG-36986May 26Riverbend91Issuer unavailableRetry schedule1Recovered$90$0.105408c22d…555d
26757FG-36987Jun 26Riverbend61Insufficient fundsRetry schedule3Not recovered—$0.3084d7ae37…927b
26758FG-36988Sep 26Riverbend01Do not honorRetry schedule2Recovered$90$0.20ac1affce…8fa3
26759FG-36989Apr 26Riverbend91Issuer unavailableRetry schedule1Recovered$20$0.1034db5d99…cf21
26760FG-36990Jan 26Riverbend05Do not honorRetry schedule1Recovered$25$0.109997add2…2957
26761FG-36991Jul 26Riverbend46Account closedDonor outreach1Recovered$25$0.1020b7252f…83f9
26762FG-36992Jun 26Riverbend51Insufficient fundsRetry schedule2Not recovered—$0.2060a94668…8a80
26763FG-36993Jan 26Harbor Light54Expired cardDonor outreach0Stopped—$0.0086991354…827d
26764FG-36994Sep 26Harbor Light54Expired cardDonor outreach0Stopped—$0.00afe106f6…9cc7
26765FG-36995Nov 25Harbor Light65Insufficient fundsRetry schedule3Recovered$20$0.30899033d6…1e72
26766FG-36996Dec 25Harbor Light59Suspected fraudDonor outreach0Not recovered—$0.006fafcdb9…ffcf
26767FG-36997May 26Harbor Light54Expired cardDonor outreach0Stopped—$0.00d59f9ff4…6267
26768FG-36998Feb 26Northgate05Do not honorRetry schedule2Recovered$110$0.20bcce37ca…66d5
26769FG-36999Jan 26Harbor Light65Insufficient fundsRetry schedule1Not recovered—$0.108edcd566…5bce
26770FG-37000Jun 26Harbor Light61Insufficient fundsRetry schedule1Not recovered—$0.10aa2aab96…37d6
26771FG-37001Apr 26Harbor Light54Expired cardCard updater, then retry1Recovered$25$0.106d830957…15d7
26772FG-37002Sep 26Harbor Light05Do not honorRetry schedule2Recovered$30$0.204cc3a7a9…948d
26773FG-37003Jan 26Riverbend59Suspected fraudDonor outreach0Not recovered—$0.00a875dff5…9833
26774FG-37004Nov 25Harbor Light96Issuer unavailableRetry schedule3Not recovered—$0.3065b85cce…9795
26775FG-37005Jun 26Harbor Light01Do not honorRetry schedule1Recovered$45$0.107de3c37b…6995
26776FG-37006May 26Harbor Light41Lost or stolenDonor outreach0Stopped—$0.009c943f5c…f0b2
26777FG-37007Jun 26Harbor Light91Issuer unavailableRetry schedule2Recovered$35$0.20661b99a6…75ec
26778FG-37008Jul 26Harbor Light51Insufficient fundsRetry schedule1Recovered$35$0.1020e9cc69…8197
26779FG-37009Nov 25Northgate05Do not honorRetry schedule1Recovered$45$0.108f4a564a…030a
26780FG-37010Aug 26Northgate54Expired cardDonor outreach0Stopped—$0.00e9288dd3…f150
26781FG-37011Mar 26Cedar Valley41Lost or stolenDonor outreach0Stopped—$0.003ed90a3d…2abe
26782FG-37012Feb 26Harbor Light51Insufficient fundsRetry schedule2Not recovered—$0.20631c9d87…f85e
26783FG-37013May 26Riverbend61Insufficient fundsRetry schedule2Stopped—$0.20e302b3eb…8860
26784FG-37014Jan 26Northgate05Do not honorRetry schedule3Stopped—$0.304d614c91…2af9
26785FG-37015Jun 26Northgate05Do not honorRetry schedule3Recovered$70$0.30eb464f87…2c06
26786FG-37016Dec 25Riverbend65Insufficient fundsRetry schedule3Not recovered—$0.3064866a61…5aed
26787FG-37017Nov 25Riverbend51Insufficient fundsRetry schedule1Recovered$35$0.101a6e16e9…c4a8
26788FG-37018Mar 26Riverbend54Expired cardCard updater, then retry1Not recovered—$0.103f765cc8…9548
26789FG-37019Dec 25Harbor Light51Insufficient fundsRetry schedule1Recovered$15$0.10c60660ba…e7e7
26790FG-37020Jan 26Harbor Light65Insufficient fundsRetry schedule3Not recovered—$0.3084a96df1…267e
26791FG-37021Apr 26Harbor Light54Expired cardCard updater, then retry1Recovered$15$0.10b1b2447b…e88a
26792FG-37022Jul 26Northgate51Insufficient fundsRetry schedule1Recovered$300$0.10ec6a471d…b076
26793FG-37023May 26Northgate65Insufficient fundsRetry schedule4Recovered$30$0.40733cfff4…f1c7
26794FG-37024Jan 26Harbor Light51Insufficient fundsRetry schedule3Not recovered—$0.3003d4b245…5a42
26795FG-37025Sep 26Harbor Light65Insufficient fundsRetry schedule1Recovered$170$0.1016562296…982d
26796FG-37026May 26Cedar Valley65Insufficient fundsRetry schedule2Recovered$20$0.200b674db1…b9da
26797FG-37027Jun 26Cedar Valley65Insufficient fundsRetry schedule2Not recovered—$0.20b442e941…2405
26798FG-37028Jan 26Riverbend54Expired cardDonor outreach1Recovered$20$0.1031f4809a…8273
26799FG-37029Apr 26Riverbend65Insufficient fundsRetry schedule1Recovered$20$0.104b4dc404…8419
26800FG-37030Feb 26Cedar Valley54Expired cardDonor outreach0Stopped—$0.004cfb8c98…bcd8

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.