Pith Number

pith:YJW5CZZC

pith:2011:YJW5CZZCBZJZBGV7SRWIDUUSZI

not attested not anchored not stored refs pending

A deformation of the Orlik-Solomon algebra

Istvan Heckenberger, Volkmar Welker

arxiv:1109.1945 v1 · 2011-09-09 · math.CO · math.GT · math.RT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YJW5CZZCBZJZBGV7SRWIDUUSZI}

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	2026-05-18T04:13:46.455508Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c26dd167220e53909abf946c81d292ca31e4fdd2fa1c0d6066a03c9b33966d9d

Aliases

arxiv: 1109.1945 · arxiv_version: 1109.1945v1 · doi: 10.48550/arxiv.1109.1945 · pith_short_12: YJW5CZZCBZJZ · pith_short_16: YJW5CZZCBZJZBGV7 · pith_short_8: YJW5CZZC

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/YJW5CZZCBZJZBGV7SRWIDUUSZI \
  | 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: c26dd167220e53909abf946c81d292ca31e4fdd2fa1c0d6066a03c9b33966d9d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e0870e51ac46ce2f250bbd750cebe0bc72c4823952af6a60fda316fda0a26ba2",
    "cross_cats_sorted": [
      "math.GT",
      "math.RT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2011-09-09T08:53:05Z",
    "title_canon_sha256": "c88f1e7e2557d09d7e8933ded00e200ee1aae7251fcbcc0d92a764b95b8fcc12"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.1945",
    "kind": "arxiv",
    "version": 1
  }
}