Pith Number

pith:KY7JMQPS

pith:2010:KY7JMQPSSADHGLF6CDGR4JYOCQ

not attested not anchored not stored refs pending

Homology of the Boolean Complex

Bridget Eileen Tenner, Kari Ragnarsson

arxiv:1005.4411 v2 · 2010-05-24 · 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{KY7JMQPSSADHGLF6CDGR4JYOCQ}

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	2026-05-18T04:25:25.962481Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

563e9641f29006732cbe10cd1e270e1421ad94f01e10c893561b9140aa195ebd

Aliases

arxiv: 1005.4411 · arxiv_version: 1005.4411v2 · doi: 10.48550/arxiv.1005.4411 · pith_short_12: KY7JMQPSSADH · pith_short_16: KY7JMQPSSADHGLF6 · pith_short_8: KY7JMQPS

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/KY7JMQPSSADHGLF6CDGR4JYOCQ \
  | 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: 563e9641f29006732cbe10cd1e270e1421ad94f01e10c893561b9140aa195ebd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ebfa4fb7cebe66c63d367642e5667e05b2dfc96b197c29be1fcbb3d861ed0809",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2010-05-24T20:02:54Z",
    "title_canon_sha256": "65dae112d0228b859dbd9a312c17894bd367b1db984bc901febd5ac155b822c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.4411",
    "kind": "arxiv",
    "version": 2
  }
}