Pith Number

pith:II2HY2NU

pith:2019:II2HY2NUWC2QZFOALNTECZ4CA3

not attested not anchored not stored refs pending

Isomorphism problems for tensors, groups, and cubic forms: completeness and reductions

Joshua A. Grochow, Youming Qiao

arxiv:1907.00309 v1 · 2019-06-30 · cs.CC · math.AG · math.GR · math.RT · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{II2HY2NUWC2QZFOALNTECZ4CA3}

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	2026-07-05T11:22:26.414944Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42347c69b4b0b50c95c05b6641678206e914f99798a1fcee69afb8d18a6543b7

Aliases

arxiv: 1907.00309 · arxiv_version: 1907.00309v1 · doi: 10.48550/arxiv.1907.00309 · pith_short_12: II2HY2NUWC2Q · pith_short_16: II2HY2NUWC2QZFOA · pith_short_8: II2HY2NU

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/II2HY2NUWC2QZFOALNTECZ4CA3 \
  | 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: 42347c69b4b0b50c95c05b6641678206e914f99798a1fcee69afb8d18a6543b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "34925868372a22b7a987191d38cf1eb928f159a6744f82315d6b09be7a3e0dbb",
    "cross_cats_sorted": [
      "math.AG",
      "math.GR",
      "math.RT",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2019-06-30T03:08:38Z",
    "title_canon_sha256": "974d9b8621ff3862df2cfac3930385f386e1c844848c3b684ae2f2c385664a6e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.00309",
    "kind": "arxiv",
    "version": 1
  }
}