Pith Number

pith:KEQE7AYP

pith:2025:KEQE7AYPN4OYO6LMOXLSOTNV2F

not attested not anchored not stored refs pending

Graph theoretic properties of Speyer's matroid polynomial $g_M(t)$

Erik Panzer

arxiv:2506.18788 v1 · 2025-06-23 · 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{KEQE7AYPN4OYO6LMOXLSOTNV2F}

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	2026-07-05T11:25:56.049914Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

51204f830f6f1d87796c75d7274db5d14e518f7051558e5c1a6b4deea7a6d0f4

Aliases

arxiv: 2506.18788 · arxiv_version: 2506.18788v1 · doi: 10.48550/arxiv.2506.18788 · pith_short_12: KEQE7AYPN4OY · pith_short_16: KEQE7AYPN4OYO6LM · pith_short_8: KEQE7AYP

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/KEQE7AYPN4OYO6LMOXLSOTNV2F \
  | 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: 51204f830f6f1d87796c75d7274db5d14e518f7051558e5c1a6b4deea7a6d0f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a1f40d21254168a0fc45082a3688e3f6f6683037b20bdc4f2a30ebb6f80efb19",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2025-06-23T15:58:12Z",
    "title_canon_sha256": "23619433c2f22094264a9ad7169880e30fa96313a5c038d74782deaa65d40430"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.18788",
    "kind": "arxiv",
    "version": 1
  }
}