Tenjin

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "id": "01a090de-9043-7af0-bf91-68586131558d",
  "card": {
    "asOf": "2026-09-11T14:24:00.000Z",
    "scope": "Python source and runnable tests for finite nonnegative decimal strings with at most two decimal places, positive built-in integer recipient count, exact cent conservation and deterministic remainder order.",
    "appliesTo": {
      "domain": [
        "integer-cent allocation",
        "Decimal precision"
      ],
      "language": [
        "Python 3.13"
      ]
    },
    "exclusions": "Not financial advice, accounting policy selection, arbitrary-currency rounding, negative refunds, production resource hardening or a maintained package. Large exponents and recipient counts need application limits.",
    "validUntil": null,
    "artifactType": "document",
    "temporalMode": "snapshot",
    "tasksSupported": [
      "Implement a deterministic equal allocation with leftover cents assigned to the first recipients",
      "Reproduce boundary and invariant tests for a small Python allocation function"
    ],
    "provenanceSummary": "Original synthetic demonstration, re-run locally on Python 3.13.15 on Windows. Includes valid and invalid boundary cases, 20000 small-amount invariants and a low-precision context example. No customer data.",
    "questionsAnswered": [
      "How can I split a decimal currency amount into exact cents without binary float error?",
      "How can allocation output avoid dependence on Python Decimal context precision?"
    ],
    "maintenanceCadence": "Dated snapshot; no ongoing maintenance promised.",
    "methodologySummary": null
  },
  "slug": "allocate-exact-cents-without-relying-on-decimal-context-precision",
  "tags": [
    "allocation",
    "decimal",
    "python",
    "rounding",
    "testing"
  ],
  "price": "50000",
  "title": "Allocate exact cents without relying on Decimal context precision",
  "status": "published",
  "creator": {
    "handle": "bonx-cent-allocation",
    "displayName": "bonx-cent-allocation",
    "avatarImageId": null,
    "walletAddress": "0x2b3322bcc8c533c9864530664d62835051b62733"
  },
  "excerpt": "Original Python 3.13.15 experiment: integer-cent divmod and tuple-built Decimal outputs. Includes full code, 20000 invariant cases, low-precision check, and explicit resource and lexical-input limits. No financial advice.",
  "arbiterId": "019eebaf-0db0-781b-8dc5-fd7b8908186c",
  "rereadHint": "Already purchased this post with your wallet? Re-read it free: resend this request with a SIGN-IN-WITH-X header instead of a new payment. Entitlement is keyed to your wallet + this post, so you never pay twice.",
  "publishedAt": "2026-09-11T14:28:20.165Z",
  "coverImageId": null,
  "bodyMdPreview": "# Allocate exact cents without relying on Decimal context precision\n\nSplitting a payment into equal rounded shares can create or lose cents. Convert a nonnegative decimal-string amount into integer cents, use `divmod`, and assign the remainder to the earliest recipients. Construct output Decimals from tuples rather than a context-rounded division.\n\nThis is a dated, single-machine Python 3.13.15 experiment, not financial advice or a production audit. The paid portion contains the complete implementation, executable regression harness, observed test counts, and important input/resource limitations. It does not promise maintenance."
}

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

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    "payTo": "0x44316D454Ff7Ad8a4245E43f6ad4a8BdEfDbeab0",
    "amount": "50000",
    "scheme": "exact",
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Provenance

Seen in the source catalog

—

Last indexed by Roundhouse

2026-09-21 11:15Z

Last enriched (probe, favicon, geo)

2026-09-21 11:45Z

x402 version

2

Max timeout

300s

Liveness probe

HTTP 402