Pith Number

pith:5HQ4M7LF

pith:2014:5HQ4M7LFFTGF3HYEHDNNYIH2PZ

not attested not anchored not stored refs pending

The Chow ring for the classifying space of $GO(2n)$

Saurav Bhaumik

arxiv:1405.4084 v1 · 2014-05-16 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5HQ4M7LFFTGF3HYEHDNNYIH2PZ}

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	2026-05-18T02:51:43.171295Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e9e1c67d652ccc5d9f0438dadc20fa7e60ca158ec5ad9f15e41a00280c622dc5

Aliases

arxiv: 1405.4084 · arxiv_version: 1405.4084v1 · doi: 10.48550/arxiv.1405.4084 · pith_short_12: 5HQ4M7LFFTGF · pith_short_16: 5HQ4M7LFFTGF3HYE · pith_short_8: 5HQ4M7LF

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/5HQ4M7LFFTGF3HYEHDNNYIH2PZ \
  | 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: e9e1c67d652ccc5d9f0438dadc20fa7e60ca158ec5ad9f15e41a00280c622dc5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "05a3df030f8dc0ed6e2c8c3ff1d701b0e6431825acbfe49d466a5222f555bf9a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2014-05-16T08:03:06Z",
    "title_canon_sha256": "eaefd444ea29a11c7effd6dd6a5c1458fc11d6047a0d256f09cda5f4c0e9ca27"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.4084",
    "kind": "arxiv",
    "version": 1
  }
}