Pith Number

pith:WIGVDBIB

pith:2013:WIGVDBIB2HU7ZGETID6KPULVSD

not attested not anchored not stored refs pending

Severi-Bouligand tangents, Frenet frames and Riesz spaces

Daniele Mundici, Leonardo Manuel Cabrer

arxiv:1308.0662 v2 · 2013-08-03 · math.RA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WIGVDBIB2HU7ZGETID6KPULVSD}

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	2026-05-18T03:01:46.318617Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b20d518501d1e9fc989340fca7d17590df1678db6624bfdd4dfce168bd39e68e

Aliases

arxiv: 1308.0662 · arxiv_version: 1308.0662v2 · doi: 10.48550/arxiv.1308.0662 · pith_short_12: WIGVDBIB2HU7 · pith_short_16: WIGVDBIB2HU7ZGET · pith_short_8: WIGVDBIB

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/WIGVDBIB2HU7ZGETID6KPULVSD \
  | 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: b20d518501d1e9fc989340fca7d17590df1678db6624bfdd4dfce168bd39e68e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8256fa690a2412eb220c6baa40558d88abaa42c23d7619f3e0151568423ad0e5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2013-08-03T06:10:49Z",
    "title_canon_sha256": "d64541080c1a32f3204590f012d2e7ee5e8139a182778b32209d6e4452513e41"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.0662",
    "kind": "arxiv",
    "version": 2
  }
}