Pith Number

pith:6DTZG47W

pith:2015:6DTZG47WTYWCHDHBQ7C5GEOQVA

not attested not anchored not stored refs pending

Isotropic matroids I: Multimatroids and neighborhoods

Lorenzo Traldi, Robert Brijder

arxiv:1503.04406 v5 · 2015-03-15 · 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{6DTZG47WTYWCHDHBQ7C5GEOQVA}

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	2026-05-18T01:01:52.396750Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f0e79373f69e2c238ce187c5d311d0a83b61bfae998f64592c86fbe6a1e94141

Aliases

arxiv: 1503.04406 · arxiv_version: 1503.04406v5 · doi: 10.48550/arxiv.1503.04406 · pith_short_12: 6DTZG47WTYWC · pith_short_16: 6DTZG47WTYWCHDHB · pith_short_8: 6DTZG47W

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/6DTZG47WTYWCHDHBQ7C5GEOQVA \
  | 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: f0e79373f69e2c238ce187c5d311d0a83b61bfae998f64592c86fbe6a1e94141

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "93590990f5a1ae7d7537e12f6835fef7a0d77398c426db9adf70c179423bbdd4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-03-15T10:00:12Z",
    "title_canon_sha256": "c91ea0b07036b717e4b974689e6f9c1be179db8dbfe67d36a11762f4458f241a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.04406",
    "kind": "arxiv",
    "version": 5
  }
}