Pith Number

pith:EMMTNJXO

pith:2015:EMMTNJXONGPOH24CNTBGONK4BY

not attested not anchored not stored refs pending

COMs: Complexes of Oriented Matroids

Hans-Juergen Bandelt, Kolja Knauer, Victor Chepoi

arxiv:1507.06111 v3 · 2015-07-22 · math.CO · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EMMTNJXONGPOH24CNTBGONK4BY}

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	2026-05-18T00:26:52.153553Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

231936a6ee699ee3eb826cc267355c0e3f58fde5d27c6060e30bebd84abf38e4

Aliases

arxiv: 1507.06111 · arxiv_version: 1507.06111v3 · doi: 10.48550/arxiv.1507.06111 · pith_short_12: EMMTNJXONGPO · pith_short_16: EMMTNJXONGPOH24C · pith_short_8: EMMTNJXO

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/EMMTNJXONGPOH24CNTBGONK4BY \
  | 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: 231936a6ee699ee3eb826cc267355c0e3f58fde5d27c6060e30bebd84abf38e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "63ff72ea645b6f9f053c2a705b9828ddd9e58b602a0543e26d8ab4a8841b64ab",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-07-22T09:29:25Z",
    "title_canon_sha256": "b459597d68ca2d837b555612c04e5a795fb45f66263a7cdb7dc2c6c7febffc93"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.06111",
    "kind": "arxiv",
    "version": 3
  }
}