Pith Number

pith:UT4UFVNW

pith:2023:UT4UFVNWJCZM5FOJZGJ62DFRC4

not attested not anchored not stored refs pending

K-classes of delta-matroids and equivariant localization

Christopher Eur, Hunter Spink, Matt Larson

arxiv:2307.02550 v2 · 2023-07-05 · 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{UT4UFVNWJCZM5FOJZGJ62DFRC4}

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	2026-07-05T09:08:20.222887Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a4f942d5b648b2ce95c9c993ed0cb1172ac43853ae41410216c2bada67dc09b9

Aliases

arxiv: 2307.02550 · arxiv_version: 2307.02550v2 · doi: 10.48550/arxiv.2307.02550 · pith_short_12: UT4UFVNWJCZM · pith_short_16: UT4UFVNWJCZM5FOJ · pith_short_8: UT4UFVNW

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/UT4UFVNWJCZM5FOJZGJ62DFRC4 \
  | 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: a4f942d5b648b2ce95c9c993ed0cb1172ac43853ae41410216c2bada67dc09b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d191164f8c1445577bf205b6c21b8537970bf0ed735d3915bde822bfa80f977",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2023-07-05T18:00:05Z",
    "title_canon_sha256": "5821bb5eaa86ed28861c74cff77b7c85c7fbdfd5c858d603a60dccaaf704ba5f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2307.02550",
    "kind": "arxiv",
    "version": 2
  }
}