Pith Number

pith:DJ4TFXYD

pith:2017:DJ4TFXYD3NERPXORLV5JVVJMMS

not attested not anchored not stored refs pending

Cycle Double Covers via Kotzig Graphs

Arthur Hoffmann-Ostenhof, Herbert Fleischner, Roland H\"aggkvist

arxiv:1701.05844 v2 · 2017-01-20 · 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{DJ4TFXYD3NERPXORLV5JVVJMMS}

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	2026-05-18T00:52:22.002393Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a7932df03db4917ddd15d7a9ad52c64bd2e097fc4206ac0b616275566ba6ee1

Aliases

arxiv: 1701.05844 · arxiv_version: 1701.05844v2 · doi: 10.48550/arxiv.1701.05844 · pith_short_12: DJ4TFXYD3NER · pith_short_16: DJ4TFXYD3NERPXOR · pith_short_8: DJ4TFXYD

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/DJ4TFXYD3NERPXORLV5JVVJMMS \
  | 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: 1a7932df03db4917ddd15d7a9ad52c64bd2e097fc4206ac0b616275566ba6ee1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c713d569bd832d04403f9f2f0fa57482343a6cd16cec2c722895e83578dfc07f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-01-20T16:23:07Z",
    "title_canon_sha256": "59ab66c41a2e6e46237be8573190fdab6148aeb9d896976bf0ccbe0908ebd633"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.05844",
    "kind": "arxiv",
    "version": 2
  }
}