Pith Number

pith:QSEVEQQZ

pith:2016:QSEVEQQZUZZKY4E33ZNKBUG3LT

not attested not anchored not stored refs pending

Guessing Numbers of Odd Cycles

Fiona Skerman, Puck Rombach, Ross Atkins

arxiv:1602.03586 v1 · 2016-02-11 · cs.IT · math.CO · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QSEVEQQZUZZKY4E33ZNKBUG3LT}

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	2026-05-18T01:20:58.435146Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8489524219a672ac709bde5aa0d0db5cc7b14228dcf7f49335fb33aae5b3f4df

Aliases

arxiv: 1602.03586 · arxiv_version: 1602.03586v1 · doi: 10.48550/arxiv.1602.03586 · pith_short_12: QSEVEQQZUZZK · pith_short_16: QSEVEQQZUZZKY4E3 · pith_short_8: QSEVEQQZ

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/QSEVEQQZUZZKY4E33ZNKBUG3LT \
  | 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: 8489524219a672ac709bde5aa0d0db5cc7b14228dcf7f49335fb33aae5b3f4df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c893f5cd657f3915e246ca7a1eb7cda8f894c6d2f33e8e2af835d205bc9e5612",
    "cross_cats_sorted": [
      "math.CO",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2016-02-11T00:53:50Z",
    "title_canon_sha256": "98ce05dd373cc83ca45913a2d2d84532bc37ebba3f47ce0a6888347714b69430"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.03586",
    "kind": "arxiv",
    "version": 1
  }
}