Pith Number

pith:3CMFG2L5

pith:2014:3CMFG2L57ZYDX6FCPIPMX77GSR

not attested not anchored not stored refs pending

Hypersurfaces quartiques de dimension 3 : non rationalit\'e stable

Alena Pirutka, Jean-Louis Colliot-Th\'el\`ene

arxiv:1402.4153 v4 · 2014-02-17 · 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{3CMFG2L57ZYDX6FCPIPMX77GSR}

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	2026-05-18T01:59:58.788819Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d89853697dfe703bf8a27a1ecbffe6945565ffe110b0a684f03380b7eaea5c2a

Aliases

arxiv: 1402.4153 · arxiv_version: 1402.4153v4 · doi: 10.48550/arxiv.1402.4153 · pith_short_12: 3CMFG2L57ZYD · pith_short_16: 3CMFG2L57ZYDX6FC · pith_short_8: 3CMFG2L5

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/3CMFG2L57ZYDX6FCPIPMX77GSR \
  | 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: d89853697dfe703bf8a27a1ecbffe6945565ffe110b0a684f03380b7eaea5c2a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "de2479433b72a8fe3042395f9e16912f2b0d078fbddad22eeac924625f1a8e3d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2014-02-17T21:34:00Z",
    "title_canon_sha256": "bc8d60d9b355770f8e1a98564034573065f124bdd6635d210893627a58e5da27"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.4153",
    "kind": "arxiv",
    "version": 4
  }
}