pith. sign in
Pith Number

pith:W35HP2HY

pith:2013:W35HP2HYMNCYVVGPXY565V7YFO
not attested not anchored not stored refs pending

The Goldman-Rota identity and the Grassmann scheme

Murali K. Srinivasan

arxiv:1304.6244 v1 · 2013-04-23 · math.CO

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{W35HP2HYMNCYVVGPXY565V7YFO}

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 2026-05-18T03:27:22.004242Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

b6fa77e8f863458ad4cfbe3beed7f82bb5efc26611b7d48d6c9fa41fb08147d7

Aliases

arxiv: 1304.6244 · arxiv_version: 1304.6244v1 · doi: 10.48550/arxiv.1304.6244 · pith_short_12: W35HP2HYMNCY · pith_short_16: W35HP2HYMNCYVVGP · pith_short_8: W35HP2HY
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/W35HP2HYMNCYVVGPXY565V7YFO \
  | 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: b6fa77e8f863458ad4cfbe3beed7f82bb5efc26611b7d48d6c9fa41fb08147d7
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "30c33fb3f19f4beebe749820edc7bab022a84fe7e79db7b9e69f7b5ea2e9aa86",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2013-04-23T11:32:47Z",
    "title_canon_sha256": "b0124abbfc9f23224b3d5d28803081291b3c4ab026dd2f5826c666a03e8370cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.6244",
    "kind": "arxiv",
    "version": 1
  }
}