Pith Number

pith:V3IARHXQ

pith:2017:V3IARHXQIALALY3DK2GJLHPQ5S

not attested not anchored not stored refs pending

Fermat-type configurations of lines in $\mathbb P^3$ and the containment problem

Grzegorz Malara, Justyna Szpond

arxiv:1702.02160 v2 · 2017-02-07 · 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{V3IARHXQIALALY3DK2GJLHPQ5S}

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	2026-05-18T00:20:44.760403Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aed0089ef0401605e363568c959df0ec8a5a2663dfc3187757fb0182176ed502

Aliases

arxiv: 1702.02160 · arxiv_version: 1702.02160v2 · doi: 10.48550/arxiv.1702.02160 · pith_short_12: V3IARHXQIALA · pith_short_16: V3IARHXQIALALY3D · pith_short_8: V3IARHXQ

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/V3IARHXQIALALY3DK2GJLHPQ5S \
  | 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: aed0089ef0401605e363568c959df0ec8a5a2663dfc3187757fb0182176ed502

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd331ef1b7c95e62858e073b7bd5db918d2307cf91fcd6b10088103b6b6df872",
    "cross_cats_sorted": [
      "math.AC",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2017-02-07T19:01:18Z",
    "title_canon_sha256": "da832de5ef353c69bcd4a74594ad49f6b64d94f082ad25e66822541b90c67d89"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.02160",
    "kind": "arxiv",
    "version": 2
  }
}