Pith Number

pith:7YR6JHP3

pith:2018:7YR6JHP3Z66T5N42GP6MTO4NNM

not attested not anchored not stored refs pending

Partitioning a graph into cycles with a specified number of chords

Jin Yan, Shuya Chiba, Suyun Jiang

arxiv:1808.03893 v1 · 2018-08-12 · 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{7YR6JHP3Z66T5N42GP6MTO4NNM}

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	2026-05-18T00:08:19.401566Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe23e49dfbcfbd3eb79a33fcc9bb8d6b232f21b64c49c9e4d6eda3f9bd0b63a2

Aliases

arxiv: 1808.03893 · arxiv_version: 1808.03893v1 · doi: 10.48550/arxiv.1808.03893 · pith_short_12: 7YR6JHP3Z66T · pith_short_16: 7YR6JHP3Z66T5N42 · pith_short_8: 7YR6JHP3

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/7YR6JHP3Z66T5N42GP6MTO4NNM \
  | 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: fe23e49dfbcfbd3eb79a33fcc9bb8d6b232f21b64c49c9e4d6eda3f9bd0b63a2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "98ab056dced71bcb08518e7c578db78a87df505ad62a2f7d249be630b81537a0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-08-12T05:38:41Z",
    "title_canon_sha256": "f2305b1b1cacde4c99e9806c7c44aef7d84f71c061df015be7ad226b9939dc47"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.03893",
    "kind": "arxiv",
    "version": 1
  }
}