Pith Number

pith:U2R2LF7B

pith:2018:U2R2LF7BK5VUY5ULRWLWCDJR6V

not attested not anchored not stored refs pending

On Lusztig-Dupont homology of flag complexes

Roy Meshulam, Shira Zerbib

arxiv:1807.05297 v1 · 2018-07-13 · 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{U2R2LF7BK5VUY5ULRWLWCDJR6V}

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	2026-05-18T00:10:43.851950Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6a3a597e1576b4c768b8d97610d31f57ade15cb3fa43a1b15d27d4f3836651f

Aliases

arxiv: 1807.05297 · arxiv_version: 1807.05297v1 · doi: 10.48550/arxiv.1807.05297 · pith_short_12: U2R2LF7BK5VU · pith_short_16: U2R2LF7BK5VUY5UL · pith_short_8: U2R2LF7B

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/U2R2LF7BK5VUY5ULRWLWCDJR6V \
  | 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: a6a3a597e1576b4c768b8d97610d31f57ade15cb3fa43a1b15d27d4f3836651f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "065f43c9a922453356d5b53e7a684bac47e0c187b2e46b76f66e3fb8b9cd35b7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-07-13T22:18:56Z",
    "title_canon_sha256": "3696bec555ffcab64f789b1d015aa931c0b7769441b46cee8f6d193cd866b397"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.05297",
    "kind": "arxiv",
    "version": 1
  }
}