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 51 to 100 of 35992
#GiftOrganisationDeclineActionAttemptsOutcomeRecoveredFeesHash
51FG-10281May 26Northgate54Expired cardDonor outreach1Recovered$35$0.10b0c434e2…916b
52FG-10282Sep 26Northgate51Insufficient fundsRetry schedule3Recovered$35$0.30edb4e6fb…17ca
53FG-10283Nov 25Northgate46Account closedDonor outreach1Recovered$25$0.108988196b…67e2
54FG-10284Mar 26Northgate59Suspected fraudDonor outreach1Recovered$25$0.1018c2d4de…e975
55FG-10285Jan 26Lumen Arts33Expired cardDonor outreach1Recovered$120$0.101c185253…cfd9
56FG-10286Aug 26Lumen Arts51Insufficient fundsRetry schedule2Recovered$120$0.20aac5ccdf…e47d
57FG-10287Dec 25Lumen ArtsR09ACH R01 fundsRetry schedule1Recovered$60$0.108cdf132e…e973
58FG-10288Jan 26Riverbend46Account closedDonor outreach0Stopped—$0.0021d18f6e…881b
59FG-10289Nov 25Harbor Light15Invalid cardDonor outreach0Stopped—$0.006a01c617…ff95
60FG-10290Mar 26Harbor Light65Insufficient fundsRetry schedule3Stopped—$0.3070a28be1…bbec
61FG-10291Oct 25Northgate61Insufficient fundsRetry schedule3Not recovered—$0.30ec1954ea…64d0
62FG-10292Nov 25Northgate51Insufficient fundsRetry schedule3Not recovered—$0.30a3f1fdf7…6600
63FG-10293Jan 26Northgate46Account closedDonor outreach1Recovered$100$0.10c5d4a180…f6aa
64FG-10294Feb 26Northgate01Do not honorRetry schedule3Recovered$100$0.308c56d414…da9f
65FG-10295Mar 26Northgate54Expired cardDonor outreach0Stopped—$0.00d7eaa581…405f
66FG-10296May 26Northgate51Insufficient fundsRetry schedule4Recovered$100$0.40572b4ceb…ace5
67FG-10297Jun 26Riverbend63Suspected fraudDonor outreach1Recovered$60$0.10cf2cd72e…0c48
68FG-10298Aug 26Cedar Valley63Suspected fraudDonor outreach1Recovered$50$0.10daa1240f…5950
69FG-10299Jan 26Cedar Valley54Expired cardCard updater, then retry1Recovered$40$0.102c02a29c…86c4
70FG-10300May 26Cedar Valley61Insufficient fundsRetry schedule1Recovered$40$0.105e5e7b30…875f
71FG-10301Feb 26Harbor Light51Insufficient fundsRetry schedule3Not recovered—$0.307c18853c…25ad
72FG-10302Aug 26Harbor Light54Expired cardCard updater, then retry1Recovered$50$0.109435e982…41a1
73FG-10303Mar 26Northgate51Insufficient fundsRetry schedule3Not recovered—$0.30e41ee6cd…6cca
74FG-10304May 26Northgate54Expired cardCard updater, then retry1Recovered$25$0.10fd58a956…df58
75FG-10305Mar 26Harbor Light59Suspected fraudDonor outreach0Stopped—$0.00a1c9574b…ab77
76FG-10306Oct 25Riverbend05Do not honorRetry schedule1Recovered$15$0.1015b3f45f…2447
77FG-10307Dec 25Riverbend65Insufficient fundsRetry schedule1Recovered$15$0.10b6c378b8…736d
78FG-10308Apr 26Riverbend33Expired cardDonor outreach0Stopped—$0.00b0efef41…a4d0
79FG-10309Nov 25Riverbend61Insufficient fundsRetry schedule2Not recovered—$0.203471074f…1110
80FG-10310Jan 26Riverbend59Suspected fraudDonor outreach1Recovered$190$0.10106ce94d…7120
81FG-10311Mar 26Harbor Light51Insufficient fundsRetry schedule2Recovered$20$0.2053000a95…4eaf
82FG-10312May 26Harbor Light65Insufficient fundsRetry schedule2Recovered$20$0.20336a0ce6…7fe2
83FG-10313Oct 25Northgate51Insufficient fundsRetry schedule2Stopped—$0.20327af0fe…1d67
84FG-10314Jan 26Northgate78Account closedDonor outreach0Stopped—$0.00a77825a4…74a3
85FG-10315Oct 25Harbor Light51Insufficient fundsRetry schedule3Recovered$50$0.3059a42ed7…341d
86FG-10316Mar 26Harbor Light51Insufficient fundsRetry schedule4Recovered$50$0.402e58d612…952c
87FG-10317Jun 26Harbor Light54Expired cardCard updater, then retry1Not recovered—$0.10bcc17b5f…8115
88FG-10318Sep 26Lumen ArtsR01ACH R01 fundsRetry schedule2Recovered$35$0.20ac97e888…5ad5
89FG-10319Nov 25Cedar ValleyR03ACH R03 no acctDonor outreach0Stopped—$0.00a649bdb3…d2e3
90FG-10320Nov 25Riverbend65Insufficient fundsRetry schedule1Recovered$15$0.109ab55409…c2e0
91FG-10321Jan 26Harbor Light33Expired cardCard updater, then retry1Recovered$90$0.1038a1d384…f372
92FG-10322Aug 26Harbor Light54Expired cardCard updater, then retry1Recovered$90$0.1069b97a76…c478
93FG-10323Mar 26Riverbend01Do not honorRetry schedule2Recovered$50$0.20bb2b50d0…4d44
94FG-10324Jun 26Cedar ValleyR01ACH R01 fundsRetry schedule1Recovered$30$0.108572a663…72ea
95FG-10325Sep 26Riverbend51Insufficient fundsRetry schedule2Recovered$25$0.20f041fa3c…0beb
96FG-10326Jan 26Cedar Valley54Expired cardCard updater, then retry1Recovered$50$0.10e8006d2b…e953
97FG-10327May 26Lumen Arts65Insufficient fundsRetry schedule2Not recovered—$0.20bd88efc2…4ad6
98FG-10328Oct 25Riverbend05Do not honorRetry schedule2Recovered$35$0.20f321bbb0…7a5c
99FG-10329Oct 25Northgate51Insufficient fundsRetry schedule1Recovered$90$0.10bd1a5cc7…e539
100FG-10330Apr 26Northgate51Insufficient fundsRetry schedule3Recovered$15$0.30041a0820…5f62

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.