Pith Number

pith:N4P24FSV

pith:2019:N4P24FSV7VL3WIA5D4E3LB3OKQ

not attested not anchored not stored refs pending

Finite extensions of $\mathcal{H}-$ and $\mathcal{AH}-$accessible groups

Sahana Balasubramanya

arxiv:1908.04894 v2 · 2019-08-14 · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{N4P24FSV7VL3WIA5D4E3LB3OKQ}

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	2026-07-05T00:15:49.863773Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6f1fae1655fd57bb201d1f09b5876e54393abcb58c0fbb26fb3ec8a0635b4e94

Aliases

arxiv: 1908.04894 · arxiv_version: 1908.04894v2 · doi: 10.48550/arxiv.1908.04894 · pith_short_12: N4P24FSV7VL3 · pith_short_16: N4P24FSV7VL3WIA5 · pith_short_8: N4P24FSV

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/N4P24FSV7VL3WIA5D4E3LB3OKQ \
  | 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: 6f1fae1655fd57bb201d1f09b5876e54393abcb58c0fbb26fb3ec8a0635b4e94

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dcc4baf48a29aec0677f5af0f604cae7a82ea0504e735a1c22c1a01b2986ba09",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2019-08-14T00:19:49Z",
    "title_canon_sha256": "0893e9a1d5202d5b830f1e5008540f513ef2035ffed271e6e7d6c1522e5b6812"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.04894",
    "kind": "arxiv",
    "version": 2
  }
}