Pith Number

pith:HATVNYMU

pith:2019:HATVNYMUCFGUMCDEYDMJZ7YYPJ

not attested not anchored not stored refs pending

Simplicial generation of Chow rings of matroids

Christopher Eur, Connor Simpson, Spencer Backman

arxiv:1905.07114 v6 · 2019-05-17 · math.CO · math.AC · 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{HATVNYMUCFGUMCDEYDMJZ7YYPJ}

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	2026-07-05T10:31:37.044622Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

382756e194114d460864c0d89cff187a71704384ac541f86d3e0a492666d32a4

Aliases

arxiv: 1905.07114 · arxiv_version: 1905.07114v6 · doi: 10.48550/arxiv.1905.07114 · pith_short_12: HATVNYMUCFGU · pith_short_16: HATVNYMUCFGUMCDE · pith_short_8: HATVNYMU

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/HATVNYMUCFGUMCDEYDMJZ7YYPJ \
  | 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: 382756e194114d460864c0d89cff187a71704384ac541f86d3e0a492666d32a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9cf4b831f1c864da995d81c3986f2e47d889e47c89e9ec12bcb4f537a8c29016",
    "cross_cats_sorted": [
      "math.AC",
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-05-17T04:51:51Z",
    "title_canon_sha256": "a4c86dec96ea5aed64d385db52334e026a8e88a10e77f49d948dc28cde3c9a0f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.07114",
    "kind": "arxiv",
    "version": 6
  }
}