Pith Number

pith:WQNJQY4D

pith:2017:WQNJQY4DKGIMIM4V5L4SWH63PN

not attested not anchored not stored refs pending

A variation on bisecting the binomial coefficients

Eugen J. Ionascu

arxiv:1712.01243 v2 · 2017-12-04 · 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{WQNJQY4DKGIMIM4V5L4SWH63PN}

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	2026-05-18T00:20:16.377883Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b41a9863835190c43395eaf92b1fdb7b6dece8110015e408d2cebdd6b6a555ff

Aliases

arxiv: 1712.01243 · arxiv_version: 1712.01243v2 · doi: 10.48550/arxiv.1712.01243 · pith_short_12: WQNJQY4DKGIM · pith_short_16: WQNJQY4DKGIMIM4V · pith_short_8: WQNJQY4D

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/WQNJQY4DKGIMIM4V5L4SWH63PN \
  | 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: b41a9863835190c43395eaf92b1fdb7b6dece8110015e408d2cebdd6b6a555ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80b3d6644f28fcd6bbbbf78590af9748628ff154a67bbb6107edebdd96df60f8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-12-04T18:36:57Z",
    "title_canon_sha256": "9882c0dce7a4cac7aa7f902c52b5fb3717e524cca0c6d9c2f49cbaafd2b62dbe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.01243",
    "kind": "arxiv",
    "version": 2
  }
}