Pith Number

pith:GZKVLPIR

pith:2018:GZKVLPIRGAGIDYIZBL5S6FQEF5

not attested not anchored not stored refs pending

A homological characterization for freeness of multi-arrangements

Michael DiPasquale

arxiv:1806.05295 v1 · 2018-06-13 · math.AG · math.AC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GZKVLPIRGAGIDYIZBL5S6FQEF5}

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	2026-05-18T00:13:16.476696Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

365555bd11300c81e1190afb2f16042f4168af62520156402537dbef3263e1c7

Aliases

arxiv: 1806.05295 · arxiv_version: 1806.05295v1 · doi: 10.48550/arxiv.1806.05295 · pith_short_12: GZKVLPIRGAGI · pith_short_16: GZKVLPIRGAGIDYIZ · pith_short_8: GZKVLPIR

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/GZKVLPIRGAGIDYIZBL5S6FQEF5 \
  | 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: 365555bd11300c81e1190afb2f16042f4168af62520156402537dbef3263e1c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8232792280e5fe0c0e2e76e8670c2736e8e27e2712c8306eb3d17ca3bda6bc5d",
    "cross_cats_sorted": [
      "math.AC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-06-13T22:52:55Z",
    "title_canon_sha256": "c50ff4662fab61b1a628846a4414b54017e629f0cddb2facbb8bf408c620f8e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.05295",
    "kind": "arxiv",
    "version": 1
  }
}