Pith Number

pith:QIFVRGZ2

pith:2026:QIFVRGZ25XDMSNG4Q4NFTOJGEV

not attested not anchored not stored refs pending

Non-extendably shellable skeleta of simplices

Davide Bolognini, Paolo Sentinelli

arxiv:2605.24732 v1 · 2026-05-23 · 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{QIFVRGZ25XDMSNG4Q4NFTOJGEV}

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	2026-05-26T01:03:55.504874Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

820b589b3aedc6c934dc871a59b926257a3195f3e4bd427a0b7a4c3767a983e3

Aliases

arxiv: 2605.24732 · arxiv_version: 2605.24732v1 · doi: 10.48550/arxiv.2605.24732 · pith_short_12: QIFVRGZ25XDM · pith_short_16: QIFVRGZ25XDMSNG4 · pith_short_8: QIFVRGZ2

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/QIFVRGZ25XDMSNG4Q4NFTOJGEV \
  | 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: 820b589b3aedc6c934dc871a59b926257a3195f3e4bd427a0b7a4c3767a983e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6868ea1eeea4694866f96fbcd8fa8fdc48447db92dbb79b1413c882e110d75ed",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2026-05-23T20:53:36Z",
    "title_canon_sha256": "91e9b4521e3c89ffa9bc539fad6b5af411bfa7cf0416213abe07cc8d9eae4752"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.24732",
    "kind": "arxiv",
    "version": 1
  }
}