Pith Number

pith:HACFB2M3

pith:2015:HACFB2M3UHCGTIKO2XYSY6PARL

not attested not anchored not stored refs pending

Handle slides for delta-matroids

Eunice Mphako-Banda, Iain Moffatt

arxiv:1510.07224 v4 · 2015-10-25 · 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{HACFB2M3UHCGTIKO2XYSY6PARL}

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	2026-05-18T00:45:20.278051Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

380450e99ba1c469a14ed5f12c79e08af5f5613d88fd2e665395da354db8b041

Aliases

arxiv: 1510.07224 · arxiv_version: 1510.07224v4 · doi: 10.48550/arxiv.1510.07224 · pith_short_12: HACFB2M3UHCG · pith_short_16: HACFB2M3UHCGTIKO · pith_short_8: HACFB2M3

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/HACFB2M3UHCGTIKO2XYSY6PARL \
  | 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: 380450e99ba1c469a14ed5f12c79e08af5f5613d88fd2e665395da354db8b041

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58226f97ff3c6975ac879d9f8ebb2ccaf796ab695edf104b9563495d30c2490b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-10-25T09:15:35Z",
    "title_canon_sha256": "6441958449adeacdd8a894cea90e366cd1ba3cacf19ee9eb0f07ce29d3dadbb8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.07224",
    "kind": "arxiv",
    "version": 4
  }
}