Pith Number

pith:CYIL5DTF

pith:2019:CYIL5DTFIFMWGAXPXGCBGM4MOZ

not attested not anchored not stored refs pending

Perfect Pseudo-Matchings in cubic graphs

Behrooz Bagheri Gh., Benedikt Klocker, Herbert Fleischner

arxiv:1905.04551 v1 · 2019-05-11 · 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{CYIL5DTFIFMWGAXPXGCBGM4MOZ}

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	2026-05-17T23:46:24.417002Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1610be8e6541596302efb98413338c7649a697c04863f8dcd5474e94ce285485

Aliases

arxiv: 1905.04551 · arxiv_version: 1905.04551v1 · doi: 10.48550/arxiv.1905.04551 · pith_short_12: CYIL5DTFIFMW · pith_short_16: CYIL5DTFIFMWGAXP · pith_short_8: CYIL5DTF

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/CYIL5DTFIFMWGAXPXGCBGM4MOZ \
  | 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: 1610be8e6541596302efb98413338c7649a697c04863f8dcd5474e94ce285485

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f7f3413ca256513135b666980c057f73ca5bf03f0b57cd2f84fb199c489e8b3b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-05-11T16:51:50Z",
    "title_canon_sha256": "11751cb0109b2bbdcd7b1bb4cf63adf114303bd2ae7fe2903081dafb48375b25"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.04551",
    "kind": "arxiv",
    "version": 1
  }
}