Pith Number

pith:AWSHZTER

pith:2012:AWSHZTER2MFHYV47CWLKEHOKQ7

not attested not anchored not stored refs pending

Two counterexamples for power ideals of arrangements

Alex Postnikov, Federico Ardila

arxiv:1211.1368 v1 · 2012-11-06 · math.CO · math.AC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AWSHZTER2MFHYV47CWLKEHOKQ7}

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	2026-05-18T03:41:21.731186Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

05a47ccc91d30a7c579f1596a21dca87ecc0f4fb30f2ca60a8b504e186c1a800

Aliases

arxiv: 1211.1368 · arxiv_version: 1211.1368v1 · doi: 10.48550/arxiv.1211.1368 · pith_short_12: AWSHZTER2MFH · pith_short_16: AWSHZTER2MFHYV47 · pith_short_8: AWSHZTER

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/AWSHZTER2MFHYV47CWLKEHOKQ7 \
  | 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: 05a47ccc91d30a7c579f1596a21dca87ecc0f4fb30f2ca60a8b504e186c1a800

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "54df61e7cca0a69b32b1fa5a0a7d636e21da24db3fdad374f951f67dc46658f2",
    "cross_cats_sorted": [
      "math.AC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2012-11-06T20:45:37Z",
    "title_canon_sha256": "1c8be08a5903e30e0cfa18b182501b85f68c8b43f0ce0da3773bf614e010d570"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.1368",
    "kind": "arxiv",
    "version": 1
  }
}