Pith Number

pith:U6J6L2WP

pith:2018:U6J6L2WPYHICT3UPITEQWQXRSE

not attested not anchored not stored refs pending

Flag matroids: algebra and geometry

Amanda Cameron, Mateusz Micha{\l}ek, Rodica Dinu, Tim Seynnaeve

arxiv:1811.00272 v1 · 2018-11-01 · math.CO · math.AG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U6J6L2WPYHICT3UPITEQWQXRSE}

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	2026-05-18T00:01:47.642952Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a793e5eacfc1d029ee8f44c90b42f1911f1878dd65b7e59d85a528229336fd8c

Aliases

arxiv: 1811.00272 · arxiv_version: 1811.00272v1 · doi: 10.48550/arxiv.1811.00272 · pith_short_12: U6J6L2WPYHIC · pith_short_16: U6J6L2WPYHICT3UP · pith_short_8: U6J6L2WP

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/U6J6L2WPYHICT3UPITEQWQXRSE \
  | 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: a793e5eacfc1d029ee8f44c90b42f1911f1878dd65b7e59d85a528229336fd8c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "828e87e71f167ae7a61623ee8a877275d6c8ac7c5ba87d39658fdc8026d52b92",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-11-01T07:43:39Z",
    "title_canon_sha256": "8da3751b5dbdf0e8d5676399185e145e71114ccfd5a7acbb0cdf80eee68beab2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.00272",
    "kind": "arxiv",
    "version": 1
  }
}