Pith Number

pith:Q6JP2FCA

pith:2013:Q6JP2FCAOUGVKIMCMDIFYJOX3G

not attested not anchored not stored refs pending

Universal unramified cohomology of cubic fourfolds containing a plane

Asher Auel, Jean-Louis Colliot-Th\'el\`ene, R. Parimala

arxiv:1310.6705 v2 · 2013-10-24 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q6JP2FCAOUGVKIMCMDIFYJOX3G}

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	2026-05-18T03:08:48.140545Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8792fd1440750d55218260d05c25d7d9b5c222da08e991dfac25f77fed698e31

Aliases

arxiv: 1310.6705 · arxiv_version: 1310.6705v2 · doi: 10.48550/arxiv.1310.6705 · pith_short_12: Q6JP2FCAOUGV · pith_short_16: Q6JP2FCAOUGVKIMC · pith_short_8: Q6JP2FCA

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/Q6JP2FCAOUGVKIMCMDIFYJOX3G \
  | 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: 8792fd1440750d55218260d05c25d7d9b5c222da08e991dfac25f77fed698e31

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dbc32c056b80996574d5f40c403d03f2203f335ba30a370bfd9f60a277f52baa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-10-24T18:49:38Z",
    "title_canon_sha256": "3d6532882739d4d1e8a7e619a4d03f52db18f9f4a6ef732b54b75507782297fc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.6705",
    "kind": "arxiv",
    "version": 2
  }
}