Pith Number

pith:NUE7DA4Z

pith:2010:NUE7DA4Z6WSU4IO3ZWMZE2ZVLX

not attested not anchored not stored refs pending

Vector spaces of skew-symmetric matrices of constant rank

Emilia Mezzetti, Maria Lucia Fania

arxiv:1011.3779 v1 · 2010-11-16 · 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{NUE7DA4Z6WSU4IO3ZWMZE2ZVLX}

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	2026-05-18T04:35:48.120945Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d09f18399f5a54e21dbcd99926b355dc60ed3f280caabbfcbab38b8c86be516

Aliases

arxiv: 1011.3779 · arxiv_version: 1011.3779v1 · doi: 10.48550/arxiv.1011.3779 · pith_short_12: NUE7DA4Z6WSU · pith_short_16: NUE7DA4Z6WSU4IO3 · pith_short_8: NUE7DA4Z

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/NUE7DA4Z6WSU4IO3ZWMZE2ZVLX \
  | 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: 6d09f18399f5a54e21dbcd99926b355dc60ed3f280caabbfcbab38b8c86be516

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26936ac8e4d827e751e5598335f700203612072ead95071a9f0a486569147cdd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2010-11-16T18:23:47Z",
    "title_canon_sha256": "e5800d03fae0643a79e372deacfaedafadfc5355ec82b5cac00303924dad67b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.3779",
    "kind": "arxiv",
    "version": 1
  }
}