Pith Number

pith:C3KPWME3

pith:2012:C3KPWME3537TS4GM5T6YAYU2P2

not attested not anchored not stored refs pending

A note on 5-cycle double covers

Arthur Hoffmann-Ostenhof

arxiv:1209.0096 v1 · 2012-09-01 · 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{C3KPWME3537TS4GM5T6YAYU2P2}

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	2026-05-18T03:41:12.260118Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

16d4fb309beeff3970ccecfd80629a7e9195f5cc0c5ba2d98f05120c7617ad93

Aliases

arxiv: 1209.0096 · arxiv_version: 1209.0096v1 · doi: 10.48550/arxiv.1209.0096 · pith_short_12: C3KPWME3537T · pith_short_16: C3KPWME3537TS4GM · pith_short_8: C3KPWME3

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/C3KPWME3537TS4GM5T6YAYU2P2 \
  | 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: 16d4fb309beeff3970ccecfd80629a7e9195f5cc0c5ba2d98f05120c7617ad93

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86407e7a1478171435b4393ef59cc6867b19d15cb756db2a40a11d815243295f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2012-09-01T14:32:39Z",
    "title_canon_sha256": "5fad428d6b2fb8efed05503f36c3823c13ac2ab7c98607313f43d3310faa93ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.0096",
    "kind": "arxiv",
    "version": 1
  }
}