Pith Number

pith:WUW77I7M

pith:2017:WUW77I7MKLRM7HA3BSJRJOZX7W

not attested not anchored not stored refs pending

1324-avoiding permutations revisited

Andrew R. Conway, Anthony J. Guttmann, Paul Zinn-Justin

arxiv:1709.01248 v2 · 2017-09-05 · 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{WUW77I7MKLRM7HA3BSJRJOZX7W}

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	2026-05-18T00:30:16.455220Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b52dffa3ec52e2cf9c1b0c9314bb37fd990002dbb4187f2aac4026fe0dca392d

Aliases

arxiv: 1709.01248 · arxiv_version: 1709.01248v2 · doi: 10.48550/arxiv.1709.01248 · pith_short_12: WUW77I7MKLRM · pith_short_16: WUW77I7MKLRM7HA3 · pith_short_8: WUW77I7M

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/WUW77I7MKLRM7HA3BSJRJOZX7W \
  | 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: b52dffa3ec52e2cf9c1b0c9314bb37fd990002dbb4187f2aac4026fe0dca392d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26edec2be3708df5f6d0fe51e5660f81f04466afc8e54f04703ddd7520a2be87",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-09-05T06:08:03Z",
    "title_canon_sha256": "6dd006ec28fd9a743e67aaf66403aecb2625f61882335d41eaad70e599fc97f0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.01248",
    "kind": "arxiv",
    "version": 2
  }
}