Pith Number

pith:W5WKQL6R

pith:2013:W5WKQL6RZL3UJY5CXFD3RRB5DV

not attested not anchored not stored refs pending

Structure of the group preserving a bilinear form

Fernando Szechtman

arxiv:1306.4285 v1 · 2013-06-18 · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W5WKQL6RZL3UJY5CXFD3RRB5DV}

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	2026-05-18T03:20:36.559403Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b76ca82fd1caf744e3a2b947b8c43d1d658ce6aa8ad9d882ee5cf6cb50a6a8e4

Aliases

arxiv: 1306.4285 · arxiv_version: 1306.4285v1 · doi: 10.48550/arxiv.1306.4285 · pith_short_12: W5WKQL6RZL3U · pith_short_16: W5WKQL6RZL3UJY5C · pith_short_8: W5WKQL6R

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/W5WKQL6RZL3UJY5CXFD3RRB5DV \
  | 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: b76ca82fd1caf744e3a2b947b8c43d1d658ce6aa8ad9d882ee5cf6cb50a6a8e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d35d4e94531e8202579b1f8cf5bb8d4774538c70e0e952470587c6e7b9aa89c4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2013-06-18T18:31:02Z",
    "title_canon_sha256": "680e85e1518938e615fe4ff34ef521339ee87e9fa10293e7625d4fd00e53bdac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.4285",
    "kind": "arxiv",
    "version": 1
  }
}