Pith Number

pith:A4CJQJOY

pith:2025:A4CJQJOYPFJ22XSOEM747G27WO

not attested not anchored not stored refs pending

Complexity of learning matchings and half graphs via edge queries

Nikhil S. Mande, Swagato Sanyal, Viktor Zamaraev

arxiv:2507.03151 v1 · 2025-07-03 · cs.CC · cs.DM · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{A4CJQJOYPFJ22XSOEM747G27WO}

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	2026-07-05T11:31:53.491929Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

07049825d87953ad5e4e233fcf9b5fb396a22b5e60c1d8851f619630326a9da4

Aliases

arxiv: 2507.03151 · arxiv_version: 2507.03151v1 · doi: 10.48550/arxiv.2507.03151 · pith_short_12: A4CJQJOYPFJ2 · pith_short_16: A4CJQJOYPFJ22XSO · pith_short_8: A4CJQJOY

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/A4CJQJOYPFJ22XSOEM747G27WO \
  | 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: 07049825d87953ad5e4e233fcf9b5fb396a22b5e60c1d8851f619630326a9da4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ec43aa0399ec04dd982278b3290c1e55c02a309f9cd1ca3b5e45d20e9da99fa",
    "cross_cats_sorted": [
      "cs.DM",
      "math.CO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2025-07-03T20:13:05Z",
    "title_canon_sha256": "5eff792052a0e0303b1fcb1c2510fc149167ed9d6a654550a9fdabb0fa423137"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.03151",
    "kind": "arxiv",
    "version": 1
  }
}