Pith Number

pith:ODJAZ6WL

pith:2015:ODJAZ6WLLJ4JIU47JLET2LU7XN

not attested not anchored not stored refs pending

Group Isomorphism with Fixed Subnormal Chains

Eugene M. Luks

arxiv:1511.00151 v1 · 2015-10-31 · cs.CC · 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{ODJAZ6WLLJ4JIU47JLET2LU7XN}

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.

Cited by

1 paper in Pith

On the Complexity of Identifying Groups without Abelian Normal Subgroups: Parallel, First Order, and GI-Hardness

Receipt and verification

First computed	2026-05-18T01:28:13.127772Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

70d20cfacb5a7894539f4ac93d2e9fbb7a3dfb60db983a35e7dfd6a9efdd9616

Aliases

arxiv: 1511.00151 · arxiv_version: 1511.00151v1 · doi: 10.48550/arxiv.1511.00151 · pith_short_12: ODJAZ6WLLJ4J · pith_short_16: ODJAZ6WLLJ4JIU47 · pith_short_8: ODJAZ6WL

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/ODJAZ6WLLJ4JIU47JLET2LU7XN \
  | 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: 70d20cfacb5a7894539f4ac93d2e9fbb7a3dfb60db983a35e7dfd6a9efdd9616

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "870211cd88cbf3adff531930e88c27fe885d2ee3d3039e1142000edbc27f41a4",
    "cross_cats_sorted": [
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2015-10-31T17:06:21Z",
    "title_canon_sha256": "5f120efd4a78c2ba4dcbd740c99ac7acc5810672ba1817c5f21e94924f227487"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.00151",
    "kind": "arxiv",
    "version": 1
  }
}