Pith Number

pith:OMEUHCIG

pith:2013:OMEUHCIGNGM56EJ5MSAGLPWBZO

not attested not anchored not stored refs pending

On quartics with lines of the second kind

Matthias Schuett, Slawomir Rams

arxiv:1303.1304 v1 · 2013-03-06 · 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{OMEUHCIGNGM56EJ5MSAGLPWBZO}

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	2026-05-18T00:44:10.397634Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

73094389066999df113d648065bec1cbbf9c066e00b1332c957ccebf6a5a0784

Aliases

arxiv: 1303.1304 · arxiv_version: 1303.1304v1 · doi: 10.48550/arxiv.1303.1304 · pith_short_12: OMEUHCIGNGM5 · pith_short_16: OMEUHCIGNGM56EJ5 · pith_short_8: OMEUHCIG

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/OMEUHCIGNGM56EJ5MSAGLPWBZO \
  | 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: 73094389066999df113d648065bec1cbbf9c066e00b1332c957ccebf6a5a0784

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "849723837cd1b5407519951fb18b4afd7d4f91f7ddd7ab7a5803194efec398d0",
    "cross_cats_sorted": [
      "math.AC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-03-06T11:27:21Z",
    "title_canon_sha256": "a422e3aee7ab5cf4e0ae53aa33f0b5e72b7d5b61389f7030995027d38ab36838"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.1304",
    "kind": "arxiv",
    "version": 1
  }
}