Pith Number

pith:PALNP5AQ

pith:2016:PALNP5AQXDFQ3PXCBLMZHG3247

not attested not anchored not stored refs pending

Improved bounds for hypohamiltonian graphs

Carol T. Zamfirescu, Jan Goedgebeur

arxiv:1602.07171 v2 · 2016-02-23 · math.CO · cs.DM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PALNP5AQXDFQ3PXCBLMZHG3247}

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	2026-05-17T23:58:54.897077Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7816d7f410b8cb0dbee20ad9939b7ae7d0ba1dfbaaa39fdc4e21c1aad7bf85ca

Aliases

arxiv: 1602.07171 · arxiv_version: 1602.07171v2 · doi: 10.48550/arxiv.1602.07171 · pith_short_12: PALNP5AQXDFQ · pith_short_16: PALNP5AQXDFQ3PXC · pith_short_8: PALNP5AQ

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/PALNP5AQXDFQ3PXCBLMZHG3247 \
  | 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: 7816d7f410b8cb0dbee20ad9939b7ae7d0ba1dfbaaa39fdc4e21c1aad7bf85ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db43951b29355c36a2dc517a7bd08cc17eff33d5110a2e5e21bd3a9935ea5367",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2016-02-23T14:44:55Z",
    "title_canon_sha256": "c864377f106d06d2345572ebaec73e7e390fec9f643660abd8c3116c6a68984a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.07171",
    "kind": "arxiv",
    "version": 2
  }
}