Pith Number

pith:VS4E7C22

pith:2012:VS4E7C224OQLYQWVJDNP2RKMCG

not attested not anchored not stored refs pending

Characteristic Classes for GO(2n) in \'Etale Cohomology

Saurav Bhaumik

arxiv:1201.4628 v1 · 2012-01-23 · 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{VS4E7C224OQLYQWVJDNP2RKMCG}

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	2026-05-18T04:04:05.576231Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

acb84f8b5ae3a0bc42d548dafd454c11881129e3991dde3c1c991a35e92c12a3

Aliases

arxiv: 1201.4628 · arxiv_version: 1201.4628v1 · doi: 10.48550/arxiv.1201.4628 · pith_short_12: VS4E7C224OQL · pith_short_16: VS4E7C224OQLYQWV · pith_short_8: VS4E7C22

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/VS4E7C224OQLYQWVJDNP2RKMCG \
  | 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: acb84f8b5ae3a0bc42d548dafd454c11881129e3991dde3c1c991a35e92c12a3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "edc176aa141f69eca9e7d5a825a37917708a34b394a348b6697eaa524e367b81",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2012-01-23T05:08:27Z",
    "title_canon_sha256": "57e58629d7dbf5e73aaf081de855b70916aad31dfcd15f465198841f72f3ae9b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.4628",
    "kind": "arxiv",
    "version": 1
  }
}