Pith Number

pith:NVRZY23Y

pith:2012:NVRZY23YMTPFB2ODS7PWMQTDAH

not attested not anchored not stored refs pending

Finitely presented monoids with linear Dehn function need not have regular cross-sections

Alan J. Cain, Victor Maltcev

arxiv:1203.0473 v1 · 2012-03-02 · cs.FL · 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{NVRZY23YMTPFB2ODS7PWMQTDAH}

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	2026-05-18T01:29:51.745996Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d639c6b7864de50e9c397df66426301e8e897e7c8c3abe50b5f1b2d89f5203c

Aliases

arxiv: 1203.0473 · arxiv_version: 1203.0473v1 · doi: 10.48550/arxiv.1203.0473 · pith_short_12: NVRZY23YMTPF · pith_short_16: NVRZY23YMTPFB2OD · pith_short_8: NVRZY23Y

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/NVRZY23YMTPFB2ODS7PWMQTDAH \
  | 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: 6d639c6b7864de50e9c397df66426301e8e897e7c8c3abe50b5f1b2d89f5203c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e3fc7c0b0045fe0a27f07048672617c42d7558fb866a6c3c98ca0317e1e9b431",
    "cross_cats_sorted": [
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2012-03-02T14:19:16Z",
    "title_canon_sha256": "ae0e48c76a922aa5d8deba9de043dd08f05f986f2beefc55075ef356af982e8f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.0473",
    "kind": "arxiv",
    "version": 1
  }
}