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fx_conversion

fx_conversion-2026200002

One entry is restated in EUR with the rate in the narrative.

expects fx_conversion

Statement files

2 highlighted lines differ from the same seed rendered without perturbations. That difference is the trap.

bnp_camt053.xml2 changed lines · first at line 358
<?xml version='1.0' encoding='utf-8'?>
<Document xmlns="urn:iso:std:iso:20022:tech:xsd:camt.053.001.02">
<BkToCstmrStmt>
<GrpHdr>
<MsgId>LB-acct-2026200002-2-2025-02-28</MsgId>
<CreDtTm>2025-02-28T23:59:00+00:00</CreDtTm>
</GrpHdr>
<Stmt>
<Id>acct-2026200002-2</Id>
<ElctrncSeqNb>1</ElctrncSeqNb>
<CreDtTm>2025-02-28T23:59:00+00:00</CreDtTm>
<FrToDt>
<FrDtTm>2025-02-01T00:00:00+00:00</FrDtTm>
<ToDtTm>2025-02-28T23:59:59+00:00</ToDtTm>
</FrToDt>
<Acct>
<Id>
<IBAN>GB23LBEN51705631734807</IBAN>
</Id>
<Ccy>GBP</Ccy>
</Acct>
<Bal>
<Tp>
<CdOrPrtry>
<Cd>OPBD</Cd>
</CdOrPrtry>
</Tp>
<Amt Ccy="GBP">184361.68</Amt>
<CdtDbtInd>CRDT</CdtDbtInd>
<Dt>
<Dt>2025-02-01</Dt>
</Dt>
</Bal>
<Ntry>
<Amt Ccy="GBP">4775.68</Amt>
<CdtDbtInd>CRDT</CdtDbtInd>
<Sts>BOOK</Sts>
<BookgDt>
<Dt>2025-02-01</Dt>
</BookgDt>
<ValDt>
<Dt>2025-02-01</Dt>
</ValDt>
<AcctSvcrRef>acct-2026200002-2-t007</AcctSvcrRef>
<NtryDtls>
<TxDtls>
<RmtInf>
<Ustrd>TFR MOORLAND TELECOM REF804197</Ustrd>
</RmtInf>
</TxDtls>
</NtryDtls>
</Ntry>
<Ntry>
<Amt Ccy="GBP">2258.94</Amt>
<CdtDbtInd>CRDT</CdtDbtInd>
<Sts>BOOK</Sts>
<BookgDt>
<Dt>2025-02-03</Dt>
</BookgDt>
<ValDt>
<Dt>2025-02-03</Dt>
</ValDt>
<AcctSvcrRef>acct-2026200002-2-t010</AcctSvcrRef>
<NtryDtls>
<TxDtls>
<RmtInf>
<Ustrd>FPI DELPHINIUM MEDIA REF538187</Ustrd>
</RmtInf>
</TxDtls>
</NtryDtls>
</Ntry>
<Ntry>
<Amt Ccy="GBP">12594.29</Amt>
<CdtDbtInd>CRDT</CdtDbtInd>
<Sts>BOOK</Sts>
<BookgDt>
<Dt>2025-02-04</Dt>
</BookgDt>
<ValDt>
<Dt>2025-02-04</Dt>
</ValDt>
<AcctSvcrRef>acct-2026200002-2-t001</AcctSvcrRef>
<NtryDtls>
<TxDtls>
<RmtInf>
<Ustrd>TFR HARBOURLIGHT IT REF832319</Ustrd>
</RmtInf>
</TxDtls>
</NtryDtls>
</Ntry>
<Ntry>
<Amt Ccy="GBP">5967.15</Amt>
<CdtDbtInd>DBIT</CdtDbtInd>
<Sts>BOOK</Sts>
<BookgDt>
<Dt>2025-02-05</Dt>
</BookgDt>
<ValDt>
<Dt>2025-02-05</Dt>
</ValDt>
<AcctSvcrRef>acct-2026200002-2-t002</AcctSvcrRef>
<NtryDtls>
<TxDtls>
<RmtInf>
<Ustrd>BP AURORA CONSULTING LTD REF750389</Ustrd>
</RmtInf>
</TxDtls>
</NtryDtls>
</Ntry>
<Ntry>
<Amt Ccy="GBP">9153.15</Amt>
<CdtDbtInd>CRDT</CdtDbtInd>
<Sts>BOOK</Sts>
<BookgDt>
<Dt>2025-02-05</Dt>
</BookgDt>
<ValDt>
<Dt>2025-02-05</Dt>
</ValDt>
<AcctSvcrRef>acct-2026200002-2-t019</AcctSvcrRef>
<NtryDtls>
<TxDtls>
<RmtInf>
<Ustrd>CR BRAMBLE LOGISTICS REF482328</Ustrd>
</RmtInf>
</TxDtls>
</NtryDtls>
</Ntry>
<Ntry>
<Amt Ccy="GBP">6522.37</Amt>
<CdtDbtInd>CRDT</CdtDbtInd>
<Sts>BOOK</Sts>
<BookgDt>
<Dt>2025-02-06</Dt>
</BookgDt>
<ValDt>
<Dt>2025-02-06</Dt>
</ValDt>
<AcctSvcrRef>acct-2026200002-2-t012</AcctSvcrRef>
<NtryDtls>
<TxDtls>
<RmtInf>
<Ustrd>CR OSPREY LEASING REF625371</Ustrd>
</RmtInf>
</TxDtls>
</NtryDtls>
</Ntry>
<Ntry>
<Amt Ccy="GBP">1697.06</Amt>
<CdtDbtInd>DBIT</CdtDbtInd>
<Sts>BOOK</Sts>
<BookgDt>
<Dt>2025-02-08</Dt>
</BookgDt>
<ValDt>
<Dt>2025-02-08</Dt>
</ValDt>
<AcctSvcrRef>acct-2026200002-2-t009</AcctSvcrRef>
<NtryDtls>
<TxDtls>
<RmtInf>
<Ustrd>BP JUNIPER PAYROLL REF369115</Ustrd>
</RmtInf>
</TxDtls>
</NtryDtls>
</Ntry>
<Ntry>
<Amt Ccy="GBP">7458.13</Amt>
<CdtDbtInd>DBIT</CdtDbtInd>
<Sts>BOOK</Sts>
<BookgDt>
<Dt>2025-02-10</Dt>
</BookgDt>
<ValDt>
<Dt>2025-02-10</Dt>
</ValDt>
<AcctSvcrRef>acct-2026200002-2-t006</AcctSvcrRef>
<NtryDtls>
<TxDtls>
<RmtInf>
<Ustrd>FPO MOORLAND TELECOM REF515127</Ustrd>
</RmtInf>
</TxDtls>
</NtryDtls>
</Ntry>
<Ntry>
<Amt Ccy="GBP">7923.04</Amt>
<CdtDbtInd>CRDT</CdtDbtInd>
<Sts>BOOK</Sts>
<BookgDt>
<Dt>2025-02-10</Dt>
</BookgDt>
<ValDt>
<Dt>2025-02-10</Dt>
</ValDt>
<AcctSvcrRef>acct-2026200002-2-t008</AcctSvcrRef>
<NtryDtls>
<TxDtls>
<RmtInf>
<Ustrd>CR DELPHINIUM MEDIA REF226253</Ustrd>
</RmtInf>
</TxDtls>
</NtryDtls>
</Ntry>
<Ntry>
<Amt Ccy="GBP">5168.40</Amt>
<CdtDbtInd>DBIT</CdtDbtInd>
<Sts>BOOK</Sts>
<BookgDt>
<Dt>2025-02-10</Dt>
</BookgDt>
<ValDt>
<Dt>2025-02-10</Dt>
</ValDt>
<AcctSvcrRef>acct-2026200002-2-t021</AcctSvcrRef>
<NtryDtls>
<TxDtls>
<RmtInf>
<Ustrd>SO HARBOURLIGHT IT REF614449</Ustrd>
</RmtInf>
</TxDtls>
</NtryDtls>
</Ntry>
<Ntry>
<Amt Ccy="GBP">1941.35</Amt>
<CdtDbtInd>DBIT</CdtDbtInd>
<Sts>BOOK</Sts>
<BookgDt>
<Dt>2025-02-11</Dt>
</BookgDt>
<ValDt>
<Dt>2025-02-11</Dt>
</ValDt>
<AcctSvcrRef>acct-2026200002-2-t005</AcctSvcrRef>
<NtryDtls>
<TxDtls>
<RmtInf>
<Ustrd>BP KESTREL INSURANCE REF946241</Ustrd>
</RmtInf>
</TxDtls>
</NtryDtls>
</Ntry>
<Ntry>
<Amt Ccy="GBP">1514.59</Amt>
<CdtDbtInd>CRDT</CdtDbtInd>
<Sts>BOOK</Sts>
<BookgDt>
<Dt>2025-02-15</Dt>
</BookgDt>
<ValDt>
<Dt>2025-02-15</Dt>
</ValDt>
<AcctSvcrRef>acct-2026200002-2-t014</AcctSvcrRef>
<NtryDtls>
<TxDtls>
<RmtInf>
<Ustrd>CR LARKSPUR TRAVEL REF878263</Ustrd>
</RmtInf>
</TxDtls>
</NtryDtls>
</Ntry>
<Ntry>
<Amt Ccy="GBP">4337.74</Amt>
<CdtDbtInd>CRDT</CdtDbtInd>
<Sts>BOOK</Sts>
<BookgDt>
<Dt>2025-02-15</Dt>
</BookgDt>
<ValDt>
<Dt>2025-02-15</Dt>
</ValDt>
<AcctSvcrRef>acct-2026200002-2-t015</AcctSvcrRef>
<NtryDtls>
<TxDtls>
<RmtInf>
<Ustrd>TFR AURORA CONSULTING LTD REF631674</Ustrd>
</RmtInf>
</TxDtls>
</NtryDtls>
</Ntry>
<Ntry>
<Amt Ccy="GBP">14338.42</Amt>
<CdtDbtInd>CRDT</CdtDbtInd>
<Sts>BOOK</Sts>
<BookgDt>
<Dt>2025-02-17</Dt>
</BookgDt>
<ValDt>
<Dt>2025-02-17</Dt>
</ValDt>
<AcctSvcrRef>acct-2026200002-2-t003</AcctSvcrRef>
<NtryDtls>
<TxDtls>
<RmtInf>
<Ustrd>CR HARBOURLIGHT IT REF529338</Ustrd>
</RmtInf>
</TxDtls>
</NtryDtls>
</Ntry>
<Ntry>
<Amt Ccy="GBP">8472.47</Amt>
<CdtDbtInd>CRDT</CdtDbtInd>
<Sts>BOOK</Sts>
<BookgDt>
<Dt>2025-02-17</Dt>
</BookgDt>
<ValDt>
<Dt>2025-02-17</Dt>
</ValDt>
<AcctSvcrRef>acct-2026200002-2-t017</AcctSvcrRef>
<NtryDtls>
<TxDtls>
<RmtInf>
<Ustrd>TFR JUNIPER PAYROLL REF452063</Ustrd>
</RmtInf>
</TxDtls>
</NtryDtls>
</Ntry>
<Ntry>
<Amt Ccy="GBP">12666.08</Amt>
<CdtDbtInd>DBIT</CdtDbtInd>
<Sts>BOOK</Sts>
<BookgDt>
<Dt>2025-02-18</Dt>
</BookgDt>
<ValDt>
<Dt>2025-02-18</Dt>
</ValDt>
<AcctSvcrRef>acct-2026200002-2-t013</AcctSvcrRef>
<NtryDtls>
<TxDtls>
<RmtInf>
<Ustrd>DD FENWICK &amp; PARTNERS REF484405</Ustrd>
</RmtInf>
</TxDtls>
</NtryDtls>
</Ntry>
<Ntry>
<Amt Ccy="GBP">8660.27</Amt>
<CdtDbtInd>CRDT</CdtDbtInd>
<Sts>BOOK</Sts>
<BookgDt>
<Dt>2025-02-20</Dt>
</BookgDt>
<ValDt>
<Dt>2025-02-20</Dt>
</ValDt>
<AcctSvcrRef>acct-2026200002-2-t016</AcctSvcrRef>
<NtryDtls>
<TxDtls>
<RmtInf>
<Ustrd>FPI BRAMBLE LOGISTICS REF135539</Ustrd>
</RmtInf>
</TxDtls>
</NtryDtls>
</Ntry>
<Ntry>
<Amt Ccy="EUR">7572.85</Amt>
<CdtDbtInd>CRDT</CdtDbtInd>
<Sts>BOOK</Sts>
<BookgDt>
<Dt>2025-02-21</Dt>
</BookgDt>
<ValDt>
<Dt>2025-02-21</Dt>
</ValDt>
<AcctSvcrRef>acct-2026200002-2-t004</AcctSvcrRef>
<NtryDtls>
<TxDtls>
<RmtInf>
<Ustrd>CR IRONBRIDGE TOOLING REF406866 | SETTLED IN EUR, CONVERT AT 0.8000 GBP/EUR</Ustrd>
</RmtInf>
</TxDtls>
</NtryDtls>
</Ntry>
<Ntry>
<Amt Ccy="GBP">753.84</Amt>
<CdtDbtInd>DBIT</CdtDbtInd>
<Sts>BOOK</Sts>
<BookgDt>
<Dt>2025-02-24</Dt>
</BookgDt>
<ValDt>
<Dt>2025-02-24</Dt>
</ValDt>
<AcctSvcrRef>acct-2026200002-2-t018</AcctSvcrRef>
<NtryDtls>
<TxDtls>
<RmtInf>
<Ustrd>SO KESTREL INSURANCE REF802292</Ustrd>
</RmtInf>
</TxDtls>
</NtryDtls>
</Ntry>
<Ntry>
<Amt Ccy="GBP">8544.29</Amt>
<CdtDbtInd>DBIT</CdtDbtInd>
<Sts>BOOK</Sts>
<BookgDt>
<Dt>2025-02-24</Dt>
hsbc_statement.xlsxUntouched by this perturbation
[sheet: Statement]
HSBC Bank plc
Business Current Account Statement
Account name: LEDGERBENCH DEMO LTD
Sort code / Account number: 66-63-10 38165459
Account reference: acct-2026200002-1
Statement period: 01 Feb 2025 to 28 Feb 2025
Currency: GBP
Opening balance: 93714.16
Date Payment type Details Paid out Paid in
01 Feb 2025 DD CASTLEGATE PROPERTY REF280434 7977.75
04 Feb 2025 FPI MOORLAND TELECOM REF468803 7206.75
06 Feb 2025 CR IRONBRIDGE TOOLING REF977882 4712.34
07 Feb 2025 CR BRAMBLE LOGISTICS REF840310 9584.31
09 Feb 2025 SO LARKSPUR TRAVEL REF831702 12333.37
12 Feb 2025 CR MOORLAND TELECOM REF293757 1581.11
12 Feb 2025 SO MOORLAND TELECOM REF996276 3781.76
13 Feb 2025 FPO FENWICK & PARTNERS REF877762 3692.26
14 Feb 2025 DD DELPHINIUM MEDIA REF693223 3585.04
15 Feb 2025 DD NORTHGATE CLEANING REF152156 10196.80
18 Feb 2025 CR BRAMBLE LOGISTICS REF777744 7402.70
20 Feb 2025 CR HARBOURLIGHT IT REF711433 9760.50
20 Feb 2025 FPI NORTHGATE CLEANING REF736691 12.07
21 Feb 2025 CR KESTREL INSURANCE REF733205 13702.47
22 Feb 2025 FPO GREENHOLM FOODS REF331400 10809.02
23 Feb 2025 SO EASTFIELD ENERGY REF418701 11762.94
25 Feb 2025 CR KESTREL INSURANCE REF949375 11036.04
25 Feb 2025 FPO BRAMBLE LOGISTICS REF341030 2570.64
26 Feb 2025 SO IRONBRIDGE TOOLING REF437605 12039.27
27 Feb 2025 SO IRONBRIDGE TOOLING REF887955 5572.08
27 Feb 2025 SO CASTLEGATE PROPERTY REF628158 1444.48
rbs_transactions.csvUntouched by this perturbation
"Date","Type","Description","Value","Account Name","Account Number","Ledger Ref"
"01/02/2025","BAL","OPENING BALANCE","73461.45","LEDGERBENCH DEMO LTD","87-45-74 51909731","acct-2026200002-3"
"01/02/2025","SO","SO KESTREL INSURANCE REF484688","-7345.65","LEDGERBENCH DEMO LTD","87-45-74 51909731","acct-2026200002-3"
"02/02/2025","CR","CR NORTHGATE CLEANING REF993924","7298.63","LEDGERBENCH DEMO LTD","87-45-74 51909731","acct-2026200002-3"
"05/02/2025","FPI","FPI LARKSPUR TRAVEL REF934877","14396.38","LEDGERBENCH DEMO LTD","87-45-74 51909731","acct-2026200002-3"
"05/02/2025","DD","DD MOORLAND TELECOM REF479906","-14695.00","LEDGERBENCH DEMO LTD","87-45-74 51909731","acct-2026200002-3"
"08/02/2025","DD","DD NORTHGATE CLEANING REF815609","-8914.57","LEDGERBENCH DEMO LTD","87-45-74 51909731","acct-2026200002-3"
"10/02/2025","BP","BP GREENHOLM FOODS REF898456","-5955.52","LEDGERBENCH DEMO LTD","87-45-74 51909731","acct-2026200002-3"
"11/02/2025","CR","CR HARBOURLIGHT IT REF879007","13593.54","LEDGERBENCH DEMO LTD","87-45-74 51909731","acct-2026200002-3"
"11/02/2025","TFR","TFR DELPHINIUM MEDIA REF221248","13803.58","LEDGERBENCH DEMO LTD","87-45-74 51909731","acct-2026200002-3"
"12/02/2025","SO","SO GREENHOLM FOODS REF686654","-13662.80","LEDGERBENCH DEMO LTD","87-45-74 51909731","acct-2026200002-3"
"13/02/2025","DD","DD IRONBRIDGE TOOLING REF341468","-10031.64","LEDGERBENCH DEMO LTD","87-45-74 51909731","acct-2026200002-3"
"13/02/2025","CR","CR NORTHGATE CLEANING REF204365","8130.18","LEDGERBENCH DEMO LTD","87-45-74 51909731","acct-2026200002-3"
"14/02/2025","SO","SO EASTFIELD ENERGY REF186196","-5931.07","LEDGERBENCH DEMO LTD","87-45-74 51909731","acct-2026200002-3"
"14/02/2025","BP","BP KESTREL INSURANCE REF917417","-14063.65","LEDGERBENCH DEMO LTD","87-45-74 51909731","acct-2026200002-3"
"15/02/2025","BP","BP EASTFIELD ENERGY REF482430","-6330.22","LEDGERBENCH DEMO LTD","87-45-74 51909731","acct-2026200002-3"
"15/02/2025","BP","BP NORTHGATE CLEANING REF650143","-2290.28","LEDGERBENCH DEMO LTD","87-45-74 51909731","acct-2026200002-3"
"18/02/2025","FPI","FPI GREENHOLM FOODS REF596070","12653.05","LEDGERBENCH DEMO LTD","87-45-74 51909731","acct-2026200002-3"
"21/02/2025","FPI","FPI KESTREL INSURANCE REF582987","3949.71","LEDGERBENCH DEMO LTD","87-45-74 51909731","acct-2026200002-3"
"24/02/2025","DD","DD AURORA CONSULTING LTD REF648470","-11144.33","LEDGERBENCH DEMO LTD","87-45-74 51909731","acct-2026200002-3"
"25/02/2025","TFR","TFR DELPHINIUM MEDIA REF374138","14623.45","LEDGERBENCH DEMO LTD","87-45-74 51909731","acct-2026200002-3"
"28/02/2025","BP","BP DELPHINIUM MEDIA REF796335","-13685.39","LEDGERBENCH DEMO LTD","87-45-74 51909731","acct-2026200002-3"
 

Ground truth

Public here because the benchmark is open; it is the model's prompt path that can never reach these values, not human readers.

AccountClosing balance
acct-2026200002-1£72,947.04
acct-2026200002-2£232,166.11
acct-2026200002-3£47,859.85

Recorded runs on this case

  • exactSingle prompt2 steps · 9,570 tokens · Confidence medium

    Model claude-sonnet-4-6Measured 2026-08-20Bench v1.0Run 11eaa71b2d02Commit 3d38c30

  • exactAgent with tools17 steps · 27,768 tokens · Confidence medium

    Model claude-sonnet-4-6Measured 2026-08-20Bench v1.0Run f140aa1e57f4Commit 384d72d

Step through any of these on the demo page.