Pith Number

pith:QEUXSWOC

pith:2017:QEUXSWOCII5Q3CLFU2BSPRL4CE

not attested not anchored not stored refs pending

The confirmation of a conjecture on disjoint cycles in a graph

Fuhong Ma, Jin Yan

arxiv:1707.02390 v1 · 2017-07-08 · 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{QEUXSWOCII5Q3CLFU2BSPRL4CE}

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	2026-05-18T00:40:39.330088Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81297959c2423b0d8965a68327c57c111a781a6bec38b7bc7b6d41e5e70de39b

Aliases

arxiv: 1707.02390 · arxiv_version: 1707.02390v1 · doi: 10.48550/arxiv.1707.02390 · pith_short_12: QEUXSWOCII5Q · pith_short_16: QEUXSWOCII5Q3CLF · pith_short_8: QEUXSWOC

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/QEUXSWOCII5Q3CLFU2BSPRL4CE \
  | 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: 81297959c2423b0d8965a68327c57c111a781a6bec38b7bc7b6d41e5e70de39b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ce32d7884f5e5e0b305253810fb62cb6183f05b81ea950a62053fa0a721ed5ee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-07-08T03:35:00Z",
    "title_canon_sha256": "08b85ce350e30c3ae9321a6154a89745d55ed2f5850601890d029efebc0d2dd0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.02390",
    "kind": "arxiv",
    "version": 1
  }
}