Pith Number

pith:4ZYYYZ3M

pith:2015:4ZYYYZ3MA4T2A4RLDFLHD5TRU5

not attested not anchored not stored refs pending

Partitioning graphs into induced subgraphs

Du\v{s}an Knop

arxiv:1508.04725 v2 · 2015-08-19 · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4ZYYYZ3MA4T2A4RLDFLHD5TRU5}

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	2026-05-18T01:19:18.545244Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6718c676c0727a0722b195671f671a74b4cdad68f2c86699a72d767d9d3d31e

Aliases

arxiv: 1508.04725 · arxiv_version: 1508.04725v2 · doi: 10.48550/arxiv.1508.04725 · pith_short_12: 4ZYYYZ3MA4T2 · pith_short_16: 4ZYYYZ3MA4T2A4RL · pith_short_8: 4ZYYYZ3M

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/4ZYYYZ3MA4T2A4RLDFLHD5TRU5 \
  | 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: e6718c676c0727a0722b195671f671a74b4cdad68f2c86699a72d767d9d3d31e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2c1f5c87334ecd429b4ed6c5a29c85a279685591272fa84b5e1489cdfeac632b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2015-08-19T18:06:12Z",
    "title_canon_sha256": "85bf34fe38b8437ed8b68f18b2b8f396d16f0aeb06686494dbc81bb08e981f74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.04725",
    "kind": "arxiv",
    "version": 2
  }
}