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 25501 to 25550 of 35992
#GiftOrganisationDeclineActionAttemptsOutcomeRecoveredFeesHash
25501FG-35731Jun 26Northgate05Do not honorRetry schedule2Recovered$80$0.20e38fbf5b…877f
25502FG-35732Jan 26Riverbend51Insufficient fundsRetry schedule1Recovered$15$0.10e19e3cad…610f
25503FG-35733May 26Riverbend51Insufficient fundsRetry schedule3Stopped—$0.304545e3c0…1e35
25504FG-35734Jul 26Riverbend51Insufficient fundsRetry schedule3Not recovered—$0.302fbaf9af…7bda
25505FG-35735Jun 26Cedar Valley51Insufficient fundsRetry schedule2Recovered$20$0.20ea2356bb…a874
25506FG-35736Sep 26Lumen ArtsR03ACH R03 no acctDonor outreach0Stopped—$0.0031ed14f4…42be
25507FG-35737Feb 26Lumen Arts54Expired cardCard updater, then retry1Recovered$150$0.1090984328…aee5
25508FG-35738Nov 25Lumen Arts05Do not honorRetry schedule1Recovered$20$0.103646a9f6…cdd7
25509FG-35739Aug 26Lumen Arts62Account closedDonor outreach0Stopped—$0.00fa773632…45da
25510FG-35740Jan 26Northgate54Expired cardCard updater, then retry1Not recovered—$0.10b7974eb9…4811
25511FG-35741Feb 26Cedar Valley05Do not honorRetry schedule3Recovered$15$0.30ceeb44d6…707a
25512FG-35742Apr 26Cedar Valley62Account closedDonor outreach1Recovered$15$0.105e8293a4…27b7
25513FG-35743May 26Cedar Valley61Insufficient fundsRetry schedule3Recovered$15$0.3004fe4351…79ff
25514FG-35744Aug 26Riverbend51Insufficient fundsRetry schedule1Recovered$70$0.106a6efe9d…617e
25515FG-35745Nov 25Cedar Valley59Suspected fraudDonor outreach0Not recovered—$0.0079792ba0…ca9d
25516FG-35746Aug 26Cedar Valley54Expired cardDonor outreach0Stopped—$0.00bbdd8563…12c5
25517FG-35747Dec 25Northgate51Insufficient fundsRetry schedule3Stopped—$0.306e704fd2…f7a9
25518FG-35748Feb 26Riverbend01Do not honorRetry schedule3Not recovered—$0.30c6390397…5b87
25519FG-35749Aug 26Riverbend54Expired cardDonor outreach0Stopped—$0.00d8cdc97e…2e3d
25520FG-35750Dec 25Cedar Valley65Insufficient fundsRetry schedule3Not recovered—$0.30d47b6bc6…683b
25521FG-35751Jan 26Cedar Valley65Insufficient fundsRetry schedule2Recovered$25$0.20481a610e…808b
25522FG-35752Jul 26Cedar Valley05Do not honorRetry schedule3Not recovered—$0.30d9be256c…5237
25523FG-35753Nov 25Lumen Arts54Expired cardCard updater, then retry1Recovered$60$0.107ea3413e…0b87
25524FG-35754Mar 26Lumen Arts54Expired cardCard updater, then retry1Recovered$60$0.10d632fa04…0835
25525FG-35755Apr 26Riverbend01Do not honorRetry schedule2Recovered$30$0.20e169375a…9991
25526FG-35756Dec 25RiverbendR01ACH R01 fundsRetry schedule2Not recovered—$0.20ecb4ae79…c8e3
25527FG-35757Nov 25Riverbend54Expired cardDonor outreach0Stopped—$0.00fbf202b2…5846
25528FG-35758Jan 26Riverbend59Suspected fraudDonor outreach1Recovered$15$0.104e017ac3…6d9c
25529FG-35759Jul 26RiverbendR01ACH R01 fundsRetry schedule1Recovered$15$0.10b9dd45ab…ce47
25530FG-35760Feb 26RiverbendR09ACH R01 fundsRetry schedule1Recovered$110$0.108b06dc5d…b978
25531FG-35761Jun 26RiverbendR01ACH R01 fundsRetry schedule1Recovered$110$0.10a8f1432d…ee8d
25532FG-35762Feb 26Northgate51Insufficient fundsRetry schedule1Recovered$35$0.101989f538…91a3
25533FG-35763May 26Northgate91Issuer unavailableRetry schedule1Recovered$45$0.10df1acd1b…d148
25534FG-35764Mar 26Northgate91Issuer unavailableRetry schedule3Not recovered—$0.300261e5d9…0776
25535FG-35765Nov 25Cedar Valley54Expired cardCard updater, then retry1Recovered$35$0.10711d503c…4030
25536FG-35766Jun 26Cedar Valley01Do not honorRetry schedule2Recovered$35$0.2012ce568f…e465
25537FG-35767Aug 26Northgate51Insufficient fundsRetry schedule1Recovered$70$0.109a5523c7…de33
25538FG-35768Dec 25Northgate65Insufficient fundsRetry schedule1Not recovered—$0.1056a5a48a…478f
25539FG-35769Jan 26Cedar ValleyR02ACH R02 closedDonor outreach0Stopped—$0.001483325e…f05b
25540FG-35770Feb 26Cedar ValleyR02ACH R02 closedDonor outreach0Stopped—$0.0068149adf…50c6
25541FG-35771Jul 26Cedar ValleyR09ACH R01 fundsRetry schedule2Recovered$25$0.200f10720f…d128
25542FG-35772Oct 25Northgate61Insufficient fundsRetry schedule1Recovered$80$0.10cefd58b9…4997
25543FG-35773Jan 26Northgate59Suspected fraudDonor outreach0Not recovered—$0.00efcf69ac…21e5
25544FG-35774Apr 26Northgate54Expired cardDonor outreach0Stopped—$0.00dbd10a50…9d8e
25545FG-35775Jul 26Riverbend65Insufficient fundsRetry schedule2Not recovered—$0.203b3dc479…6c87
25546FG-35776Jun 26Cedar Valley61Insufficient fundsRetry schedule1Recovered$20$0.10a517de28…1d7f
25547FG-35777Aug 26Cedar Valley41Lost or stolenCard updater, then retry1Not recovered—$0.103742d6d1…a090
25548FG-35778Feb 26NorthgateR01ACH R01 fundsRetry schedule2Stopped—$0.202bcf9962…2411
25549FG-35779Apr 26Northgate51Insufficient fundsRetry schedule3Stopped—$0.3092b20f2b…5aea
25550FG-35780Sep 26Northgate51Insufficient fundsRetry schedule2Recovered$25$0.202dee6f10…6f46

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.