Pith Number

pith:OXR4WWQW

pith:2007:OXR4WWQWPHZR6TPA6DCZUBZELA

not attested not anchored not stored refs pending

Combinatorial polar orderings and recursively orderable arrangements

Emanuele Delucchi, Simona Settepanella

arxiv:0711.1517 v2 · 2007-11-09 · math.CO · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OXR4WWQWPHZR6TPA6DCZUBZELA}

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	2026-05-18T03:42:24.277172Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

75e3cb5a1679f31f4de0f0c59a0724582a677e0b9a781b2adabb6a21067ee462

Aliases

arxiv: 0711.1517 · arxiv_version: 0711.1517v2 · doi: 10.48550/arxiv.0711.1517 · pith_short_12: OXR4WWQWPHZR · pith_short_16: OXR4WWQWPHZR6TPA · pith_short_8: OXR4WWQW

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/OXR4WWQWPHZR6TPA6DCZUBZELA \
  | 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: 75e3cb5a1679f31f4de0f0c59a0724582a677e0b9a781b2adabb6a21067ee462

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad5909bf4dd3aaa0d6d91b2470ef50405bf841e1f9594d5fbd989ab56b9fe73c",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2007-11-09T18:08:28Z",
    "title_canon_sha256": "9e5b1e462ffa2d7d05bab73f2da97cc1f4950b39923ad18652e0515dde1ffbf8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0711.1517",
    "kind": "arxiv",
    "version": 2
  }
}