Pith Number

pith:2A7VBZJQ

pith:2008:2A7VBZJQ2RJUW6LA3PX7ICNUFD

not attested not anchored not stored refs pending

Baxter permutations and plane bipolar orientations

Eric Fusy, Mireille Bousquet-M\'elou (LaBRI), Nicolas Bonichon (LaBRI)

arxiv:0805.4180 v1 · 2008-05-27 · 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{2A7VBZJQ2RJUW6LA3PX7ICNUFD}

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	2026-05-18T02:56:11.967142Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d03f50e530d4534b7960dbeff409b428f7da9cae43dcb89f4025e958689d3f2e

Aliases

arxiv: 0805.4180 · arxiv_version: 0805.4180v1 · doi: 10.48550/arxiv.0805.4180 · pith_short_12: 2A7VBZJQ2RJU · pith_short_16: 2A7VBZJQ2RJUW6LA · pith_short_8: 2A7VBZJQ

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/2A7VBZJQ2RJUW6LA3PX7ICNUFD \
  | 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: d03f50e530d4534b7960dbeff409b428f7da9cae43dcb89f4025e958689d3f2e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5cc8427ab27b3bbe9ed57b41b850ff282b9eb8b6cddff0a534615fc14a59969d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2008-05-27T17:34:16Z",
    "title_canon_sha256": "2e7e6c20896bd7322c2f8615586d263d1193dc016bb25e94b318797565a4c5db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0805.4180",
    "kind": "arxiv",
    "version": 1
  }
}