Pith Number

pith:IXYZZU5F

pith:2019:IXYZZU5FLRBYJGCRZPGEXURC4Z

not attested not anchored not stored refs pending

Deletion-restriction for sheaf homology of graded atomic lattices

Brent Everitt, Paul Turner

arxiv:1902.00399 v2 · 2019-02-01 · math.AT · math.CO · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IXYZZU5FLRBYJGCRZPGEXURC4Z}

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.

Cited by

1 paper in Pith

Sheaf homology of hyperplane arrangements, Boolean covers and exterior powers

Receipt and verification

First computed	2026-07-05T04:46:28.822480Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

45f19cd3a55c43849851cbcc4bd222e66aa0528e352006a26c23341f78ba130d

Aliases

arxiv: 1902.00399 · arxiv_version: 1902.00399v2 · doi: 10.48550/arxiv.1902.00399 · pith_short_12: IXYZZU5FLRBY · pith_short_16: IXYZZU5FLRBYJGCR · pith_short_8: IXYZZU5F

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/IXYZZU5FLRBYJGCRZPGEXURC4Z \
  | 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: 45f19cd3a55c43849851cbcc4bd222e66aa0528e352006a26c23341f78ba130d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c3459f4d4dce928951a511eb52443cce654c235d91b6e568c61390bdb2a21d5b",
    "cross_cats_sorted": [
      "math.CO",
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2019-02-01T15:19:24Z",
    "title_canon_sha256": "b0a1c045d3b365afaefe7495c4600e3afa08ebefa59ba234293f544304b42d91"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.00399",
    "kind": "arxiv",
    "version": 2
  }
}