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 13401 to 13450 of 35992
#GiftOrganisationDeclineActionAttemptsOutcomeRecoveredFeesHash
13401FG-23631Jun 26Lumen Arts02Do not honorRetry schedule3Not recovered—$0.300c9a6840…b4f1
13402FG-23632Aug 26Lumen Arts65Insufficient fundsRetry schedule3Recovered$160$0.30267d8c84…3980
13403FG-23633Dec 25Lumen Arts59Suspected fraudDonor outreach0Not recovered—$0.00a43b0481…2c77
13404FG-23634Feb 26Lumen Arts54Expired cardDonor outreach1Recovered$35$0.1041bd98c1…1fda
13405FG-23635May 26Lumen Arts65Insufficient fundsRetry schedule4Recovered$35$0.401df306a3…44cf
13406FG-23636Jun 26Lumen Arts41Lost or stolenDonor outreach0Stopped—$0.0053069c63…6be1
13407FG-23637Dec 25Riverbend65Insufficient fundsRetry schedule3Not recovered—$0.30cd074fef…edf4
13408FG-23638Sep 26Riverbend54Expired cardCard updater, then retry1Recovered$80$0.1035504dc8…dd1f
13409FG-23639Jun 26Harbor LightR01ACH R01 fundsRetry schedule1Recovered$40$0.104c843b9b…a11d
13410FG-23640Oct 25Lumen Arts61Insufficient fundsRetry schedule2Recovered$20$0.20cbe53fa8…d2e9
13411FG-23641Oct 25Riverbend54Expired cardDonor outreach1Not recovered—$0.10bf1d6e80…e2b2
13412FG-23642Nov 25Cedar Valley65Insufficient fundsRetry schedule1Recovered$40$0.10615da23c…1397
13413FG-23643Aug 26Cedar Valley54Expired cardCard updater, then retry1Recovered$40$0.10e38ad774…20dc
13414FG-23644Nov 25Harbor Light61Insufficient fundsRetry schedule3Stopped—$0.3080d01c5b…2223
13415FG-23645Jul 26Harbor Light51Insufficient fundsRetry schedule1Recovered$45$0.1007386d7c…e0d5
13416FG-23646Feb 26Riverbend91Issuer unavailableRetry schedule1Recovered$15$0.10b6aff3e9…23fa
13417FG-23647Sep 26Northgate51Insufficient fundsRetry schedule3Recovered$70$0.305f1959ec…d0ce
13418FG-23648Nov 25Lumen Arts05Do not honorRetry schedule3Stopped—$0.3066ec7bc8…6d20
13419FG-23649May 26Lumen Arts51Insufficient fundsRetry schedule2Not recovered—$0.202a067b9f…93ba
13420FG-23650Oct 25Riverbend65Insufficient fundsRetry schedule3Not recovered—$0.3009dd2c37…9fd6
13421FG-23651Sep 26Riverbend61Insufficient fundsRetry schedule1Recovered$5$0.10621aa25e…23c3
13422FG-23652May 26Cedar Valley46Account closedDonor outreach0Stopped—$0.00e2d2dd74…e3ca
13423FG-23653Jan 26Riverbend01Do not honorRetry schedule3Recovered$60$0.30a0084939…16e5
13424FG-23654Jul 26Riverbend96Issuer unavailableRetry schedule1Recovered$25$0.10f818c227…a542
13425FG-23655Mar 26Riverbend54Expired cardDonor outreach1Recovered$30$0.1000a1dfb5…998d
13426FG-23656Dec 25Cedar Valley59Suspected fraudDonor outreach0Stopped—$0.003d7bbb24…e9fc
13427FG-23657Dec 25Riverbend54Expired cardCard updater, then retry1Not recovered—$0.10d964d9ff…b7df
13428FG-23658Oct 25Cedar Valley51Insufficient fundsRetry schedule3Not recovered—$0.3088db9321…f10e
13429FG-23659Nov 25Lumen Arts51Insufficient fundsRetry schedule3Recovered$60$0.3065485430…4f1c
13430FG-23660Jun 26Riverbend63Suspected fraudDonor outreach1Not recovered—$0.10dcb0b7b9…21ce
13431FG-23661Sep 26Harbor Light54Expired cardDonor outreach0Stopped—$0.0004eaba49…fb3d
13432FG-23662Sep 26Harbor Light02Do not honorRetry schedule3Stopped—$0.3005837d6d…1b3f
13433FG-23663Apr 26Cedar Valley61Insufficient fundsRetry schedule1Recovered$10$0.100a78eeb3…edea
13434FG-23664Oct 25Harbor Light15Invalid cardDonor outreach0Stopped—$0.00c0f875b4…b0ce
13435FG-23665Feb 26Lumen Arts33Expired cardDonor outreach0Stopped—$0.00f53b4a5b…2fce
13436FG-23666Mar 26Lumen Arts51Insufficient fundsRetry schedule1Recovered$35$0.1097caeab8…7a7b
13437FG-23667May 26Lumen Arts51Insufficient fundsRetry schedule3Recovered$35$0.3086a95dab…e327
13438FG-23668Oct 25Riverbend65Insufficient fundsRetry schedule1Recovered$15$0.10408493e1…8ba8
13439FG-23669Jan 26Riverbend78Account closedDonor outreach0Stopped—$0.0035e4bc04…79cd
13440FG-23670Jan 26Riverbend78Account closedDonor outreach1Recovered$25$0.101ca96e23…7479
13441FG-23671Feb 26Riverbend02Do not honorRetry schedule2Recovered$25$0.2036959aab…80fd
13442FG-23672Aug 26Riverbend02Do not honorRetry schedule2Recovered$25$0.208736173a…5150
13443FG-23673Sep 26Riverbend51Insufficient fundsRetry schedule1Recovered$25$0.1079539bd2…aeba
13444FG-23674Oct 25Cedar Valley54Expired cardDonor outreach0Stopped—$0.00f143effd…098b
13445FG-23675Dec 25Cedar Valley51Insufficient fundsRetry schedule3Recovered$90$0.3072c5e777…0bd8
13446FG-23676Mar 26Cedar Valley51Insufficient fundsRetry schedule3Not recovered—$0.30ab59c56c…14a5
13447FG-23677Apr 26Cedar Valley51Insufficient fundsRetry schedule3Not recovered—$0.30793d709c…ac13
13448FG-23678Jul 26Cedar Valley05Do not honorRetry schedule1Recovered$90$0.10c97f7a9a…2197
13449FG-23679Mar 26Cedar Valley41Lost or stolenDonor outreach0Stopped—$0.00d3a378a8…5994
13450FG-23680Sep 26Northgate05Do not honorRetry schedule3Not recovered—$0.304410f11a…20bc

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.