Pith Number

pith:SOEOLFTR

pith:2018:SOEOLFTR5D525USHIHGX2XUTO7

not attested not anchored not stored refs pending

A matroid extension result

James Oxley

arxiv:1805.04960 v1 · 2018-05-13 · 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{SOEOLFTR5D525USHIHGX2XUTO7}

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	2026-05-18T00:16:04.237028Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9388e59671e8fbaed24741cd7d5e9377c0b2f45a3211eda889c8ea79873f562f

Aliases

arxiv: 1805.04960 · arxiv_version: 1805.04960v1 · doi: 10.48550/arxiv.1805.04960 · pith_short_12: SOEOLFTR5D52 · pith_short_16: SOEOLFTR5D525USH · pith_short_8: SOEOLFTR

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/SOEOLFTR5D525USHIHGX2XUTO7 \
  | 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: 9388e59671e8fbaed24741cd7d5e9377c0b2f45a3211eda889c8ea79873f562f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15a24f21752e65846c60ebf228977676bcd981f4c9611f877a37c63bd61312ac",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-05-13T21:43:05Z",
    "title_canon_sha256": "aa9133b6c559635dc9534a60589edced15e312d88c67b48357046cb0b1fd20ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.04960",
    "kind": "arxiv",
    "version": 1
  }
}