Pith Number

pith:QIF37T7Y

pith:2026:QIF37T7Y7AE25ODOYICD3YTQXO

not attested not anchored not stored refs pending

Group Testing with Selectable Thresholds

Daniel McMorrow, Jonathan Scarlett, Trung-Khang Tran

arxiv:2607.14448 v1 · 2026-07-16 · cs.IT · math.IT · math.PR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QIF37T7Y7AE25ODOYICD3YTQXO}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-17T00:21:12.924825Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

820bbfcff8f809aeb86ec2043de270bb92632f31fef169f011c1a428d2952218

Aliases

arxiv: 2607.14448 · arxiv_version: 2607.14448v1 · doi: 10.48550/arxiv.2607.14448 · pith_short_12: QIF37T7Y7AE2 · pith_short_16: QIF37T7Y7AE25ODO · pith_short_8: QIF37T7Y

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/QIF37T7Y7AE25ODOYICD3YTQXO \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 820bbfcff8f809aeb86ec2043de270bb92632f31fef169f011c1a428d2952218

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1c9d223fc418c02279de6b22d9017e30cf88b9b954df4eb2ab12f1ae79ac818",
    "cross_cats_sorted": [
      "math.IT",
      "math.PR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2026-07-16T00:46:31Z",
    "title_canon_sha256": "3751b02dd9e70bccd559332bf87a0d467263aee6e9a90eb8e0da98a4267779d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.14448",
    "kind": "arxiv",
    "version": 1
  }
}