Pith Number

pith:B4OPMFKW

pith:2018:B4OPMFKWTT5QHHZ2MA24W7ZUTJ

not attested not anchored not stored refs pending

A unifying method for the design of algorithms canonizing combinatorial objects

Daniel Wiebking, Pascal Schweitzer

arxiv:1806.07466 v2 · 2018-06-19 · cs.DS · cs.DM · 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{B4OPMFKWTT5QHHZ2MA24W7ZUTJ}

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	2026-05-17T23:49:11.633815Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f1cf615569cfb039f3a6035cb7f349a69b8c547b9cc980c7cabdb871313329c

Aliases

arxiv: 1806.07466 · arxiv_version: 1806.07466v2 · doi: 10.48550/arxiv.1806.07466 · pith_short_12: B4OPMFKWTT5Q · pith_short_16: B4OPMFKWTT5QHHZ2 · pith_short_8: B4OPMFKW

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/B4OPMFKWTT5QHHZ2MA24W7ZUTJ \
  | 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: 0f1cf615569cfb039f3a6035cb7f349a69b8c547b9cc980c7cabdb871313329c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ada3800bb84a1831e0243f2553e05b215a17bb7fc22e992b5e3a1b6cfaa69a9",
    "cross_cats_sorted": [
      "cs.DM",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-06-19T21:07:41Z",
    "title_canon_sha256": "124494f2191e33db579d8f70116d9cc551122147e4940bef3211f4bf587a8fa2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.07466",
    "kind": "arxiv",
    "version": 2
  }
}