Pith Number

pith:VG2CZABP

pith:2018:VG2CZABPKURRIQGSQO76AB64AS

not attested not anchored not stored refs pending

Quadrics defined by skew-symmetric matrices

Gaurab Tripathi, Indranath Sengupta, Joydip Saha

arxiv:1806.04446 v1 · 2018-06-12 · math.AC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VG2CZABPKURRIQGSQO76AB64AS}

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	2026-05-18T00:13:35.513976Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a9b42c802f55231440d283bfe007dc0496f35b6898ddef62109167b8c2e0eb5b

Aliases

arxiv: 1806.04446 · arxiv_version: 1806.04446v1 · doi: 10.48550/arxiv.1806.04446 · pith_short_12: VG2CZABPKURR · pith_short_16: VG2CZABPKURRIQGS · pith_short_8: VG2CZABP

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/VG2CZABPKURRIQGSQO76AB64AS \
  | 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: a9b42c802f55231440d283bfe007dc0496f35b6898ddef62109167b8c2e0eb5b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b8b8c4be85d698440daa8a97cadbd5bbf8fb6b281c3dbe6ac3ddf80c7c59cb8a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AC",
    "submitted_at": "2018-06-12T11:38:28Z",
    "title_canon_sha256": "adf70f87c4720bc2e542c24d299d101d1aabce772e3cbd94f65f0168036226e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.04446",
    "kind": "arxiv",
    "version": 1
  }
}