Pith Number

pith:JDROHJOK

pith:2015:JDROHJOKKAHMRPW36YTCPFKAEE

not attested not anchored not stored refs pending

On the structure of dense triangle-free binary matroids

Jim Geelen, Peter Nelson, Rutger Campbell

arxiv:1504.00040 v2 · 2015-03-31 · 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{JDROHJOKKAHMRPW36YTCPFKAEE}

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	2026-05-18T01:33:43.652559Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

48e2e3a5ca500ec8bedbf6262795402139d20a7271a66ac064839b4f109cd5c8

Aliases

arxiv: 1504.00040 · arxiv_version: 1504.00040v2 · doi: 10.48550/arxiv.1504.00040 · pith_short_12: JDROHJOKKAHM · pith_short_16: JDROHJOKKAHMRPW3 · pith_short_8: JDROHJOK

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/JDROHJOKKAHMRPW36YTCPFKAEE \
  | 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: 48e2e3a5ca500ec8bedbf6262795402139d20a7271a66ac064839b4f109cd5c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79cd0fcaa138ea436b806f1b9b4ee15936800a241022fe2ddf9d83fbff0c937e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-03-31T21:09:40Z",
    "title_canon_sha256": "cda799c84134958998a9d60085892a6402b0bb5fd0a9f2d2386ad5de2e52a6db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.00040",
    "kind": "arxiv",
    "version": 2
  }
}