Pith Number

pith:GMPDSIOD

pith:2011:GMPDSIODUTMLW3FNGJRPBOHLIO

not attested not anchored not stored refs pending

Output-sensitive algorithm for generating the flats of a matroid

A. Montina

arxiv:1107.4301 v1 · 2011-07-21 · 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{GMPDSIODUTMLW3FNGJRPBOHLIO}

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	2026-05-18T04:17:12.801412Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

331e3921c3a4d8bb6cad3262f0b8eb43b3f08f1be4f34d9a4de9ba5c41535ba9

Aliases

arxiv: 1107.4301 · arxiv_version: 1107.4301v1 · doi: 10.48550/arxiv.1107.4301 · pith_short_12: GMPDSIODUTML · pith_short_16: GMPDSIODUTMLW3FN · pith_short_8: GMPDSIOD

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/GMPDSIODUTMLW3FNGJRPBOHLIO \
  | 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: 331e3921c3a4d8bb6cad3262f0b8eb43b3f08f1be4f34d9a4de9ba5c41535ba9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c9459c5b53d859d5ff5275c1ebb5706148dcffdc9e206a6bf9067473a4077ab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2011-07-21T15:49:32Z",
    "title_canon_sha256": "5bad77c7bfc2b534201b6ea367e17cb9715eb9338989d9772eef112dc36b7c29"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.4301",
    "kind": "arxiv",
    "version": 1
  }
}