Pith Number

pith:JWR73H4L

pith:2025:JWR73H4LOYVULLF5KYYF3EPJVA

not attested not anchored not stored refs pending

Vari\'et\'es r\'eelles connexes non stablement rationnelles

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

arxiv:2505.21477 v2 · 2025-05-27 · 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{JWR73H4LOYVULLF5KYYF3EPJVA}

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.

Cited by

1 paper in Pith

Copositive Matrices with Ordered Off-Diagonal Entries

Receipt and verification

First computed	2026-07-05T11:17:46.009207Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4da3fd9f8b762b45acbd56305d91e9a812d2e09bcc078d19135a837d8021197d

Aliases

arxiv: 2505.21477 · arxiv_version: 2505.21477v2 · doi: 10.48550/arxiv.2505.21477 · pith_short_12: JWR73H4LOYVU · pith_short_16: JWR73H4LOYVULLF5 · pith_short_8: JWR73H4L

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/JWR73H4LOYVULLF5KYYF3EPJVA \
  | 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: 4da3fd9f8b762b45acbd56305d91e9a812d2e09bcc078d19135a837d8021197d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26e04f365f998d8d666886a44d12227c46708dd9459782d424736aeca05c6620",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2025-05-27T17:50:05Z",
    "title_canon_sha256": "8ad5e69d624ea2616367b66db42ae5b1151833c49319162bdcde52695036d322"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.21477",
    "kind": "arxiv",
    "version": 2
  }
}