Pith Number

pith:ALP7GUQW

pith:2016:ALP7GUQWRD3BRIDLYFG63QNNDK

not attested not anchored not stored refs pending

Topological classification of sesquilinear forms: reduction to the nonsingular case

Carlos M. da Fonseca, Tetiana Rybalkina, Vladimir V. Sergeichuk

arxiv:1604.05403 v1 · 2016-04-19 · math.RT · math.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ALP7GUQWRD3BRIDLYFG63QNNDK}

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	2026-05-18T01:16:09.008379Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

02dff3521688f618a06bc14dedc1ad1aa6fd012552c44008d981cc9c4b1fc01d

Aliases

arxiv: 1604.05403 · arxiv_version: 1604.05403v1 · doi: 10.48550/arxiv.1604.05403 · pith_short_12: ALP7GUQWRD3B · pith_short_16: ALP7GUQWRD3BRIDL · pith_short_8: ALP7GUQW

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/ALP7GUQWRD3BRIDLYFG63QNNDK \
  | 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: 02dff3521688f618a06bc14dedc1ad1aa6fd012552c44008d981cc9c4b1fc01d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "529c2927c09dff31e2f7bfbb9b9be9d25b1d07be9b76416278bf9ea7c4595e87",
    "cross_cats_sorted": [
      "math.GN"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RT",
    "submitted_at": "2016-04-19T01:53:04Z",
    "title_canon_sha256": "94fc0513b74818ed74b248bd9c2519033696851d5fb22cf8909fe2a7fe334eac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.05403",
    "kind": "arxiv",
    "version": 1
  }
}