Pith Number

pith:VXZYNSAI

pith:2018:VXZYNSAI7BYVNAMAOVGJJWBMSK

not attested not anchored not stored refs pending

A Note on the Isomorphism Problem for Monomial Digraphs

Alex Kodess, Felix Lazebnik

arxiv:1807.11362 v1 · 2018-07-30 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VXZYNSAI7BYVNAMAOVGJJWBMSK}

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	2026-05-18T00:09:32.102103Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

adf386c808f871568180754c94d82c92adee559142c4deaf07a14c0a0ad26380

Aliases

arxiv: 1807.11362 · arxiv_version: 1807.11362v1 · doi: 10.48550/arxiv.1807.11362 · pith_short_12: VXZYNSAI7BYV · pith_short_16: VXZYNSAI7BYVNAMA · pith_short_8: VXZYNSAI

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/VXZYNSAI7BYVNAMAOVGJJWBMSK \
  | 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: adf386c808f871568180754c94d82c92adee559142c4deaf07a14c0a0ad26380

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9926b92904b2262ad3986e6c75d219286532d588eabb51a94966e8d0af140f86",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-07-30T14:12:20Z",
    "title_canon_sha256": "98bae4000a48907836cd87579da0da1b4b6d99197ee3f246d3c787102145faef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.11362",
    "kind": "arxiv",
    "version": 1
  }
}