Pith Number

pith:PRJTGZAL

pith:2018:PRJTGZALGAGCKAUDZNUNQTSPOJ

not attested not anchored not stored refs pending

Free hyperplane arrangements over arbitrary fields

Elisa Palezzato, Michele Torielli

arxiv:1803.09908 v1 · 2018-03-27 · math.AG · math.AC · 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{PRJTGZALGAGCKAUDZNUNQTSPOJ}

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	2026-05-18T00:20:01.118120Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c5333640b300c250283cb68d84e4f7266e0953b5c7dcae00606669a36714965

Aliases

arxiv: 1803.09908 · arxiv_version: 1803.09908v1 · doi: 10.48550/arxiv.1803.09908 · pith_short_12: PRJTGZALGAGC · pith_short_16: PRJTGZALGAGCKAUD · pith_short_8: PRJTGZAL

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/PRJTGZALGAGCKAUDZNUNQTSPOJ \
  | 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: 7c5333640b300c250283cb68d84e4f7266e0953b5c7dcae00606669a36714965

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "51700dc183bff90b6a4dae453e389db2c4df9412a6bc6cef92237bc3f4a14e6f",
    "cross_cats_sorted": [
      "math.AC",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-03-27T06:03:09Z",
    "title_canon_sha256": "101d899e84f7b0c5293946b2071223db1dfd3d425056b50f06432cb963eacec8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.09908",
    "kind": "arxiv",
    "version": 1
  }
}