Pith Number

pith:AARVT5BS

pith:2017:AARVT5BSQQJEQ5GMFFLVEXSJC4

not attested not anchored not stored refs pending

Purity and separation for oriented matroids

Alexander Postnikov, Pavel Galashin

arxiv:1708.01329 v2 · 2017-08-03 · math.CO · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AARVT5BSQQJEQ5GMFFLVEXSJC4}

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.

Cited by

1 paper in Pith

Bruhat operads

Receipt and verification

First computed	2026-07-05T02:26:09.819129Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

002359f43284124874cc2957525e491731ac0777509ec02f820e6eebefbc60ec

Aliases

arxiv: 1708.01329 · arxiv_version: 1708.01329v2 · doi: 10.48550/arxiv.1708.01329 · pith_short_12: AARVT5BSQQJE · pith_short_16: AARVT5BSQQJEQ5GM · pith_short_8: AARVT5BS

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/AARVT5BSQQJEQ5GMFFLVEXSJC4 \
  | 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: 002359f43284124874cc2957525e491731ac0777509ec02f820e6eebefbc60ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6570bc63f6a776ffce5b91c518cad037de3c544169b5ef59203f0d02cf74b497",
    "cross_cats_sorted": [
      "math.MG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-08-03T23:05:59Z",
    "title_canon_sha256": "175b6f01f2e1f16f084fc212e6f79c8213e52a250a827d8178f0f118c8f62a29"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.01329",
    "kind": "arxiv",
    "version": 2
  }
}