Pith Number

pith:NDZLA7RL

pith:2019:NDZLA7RLQFVJZFISKL5X73LPEC

not attested not anchored not stored refs pending

Collapsibility of Random Clique Complexes

Greg Malen

arxiv:1903.05055 v1 · 2019-03-12 · 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{NDZLA7RLQFVJZFISKL5X73LPEC}

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	2026-05-17T23:51:26.432065Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68f2b07e2b816a9c951252fb7fed6f20bfa1aaeb0116ff17a87679644052c9f9

Aliases

arxiv: 1903.05055 · arxiv_version: 1903.05055v1 · doi: 10.48550/arxiv.1903.05055 · pith_short_12: NDZLA7RLQFVJ · pith_short_16: NDZLA7RLQFVJZFIS · pith_short_8: NDZLA7RL

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/NDZLA7RLQFVJZFISKL5X73LPEC \
  | 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: 68f2b07e2b816a9c951252fb7fed6f20bfa1aaeb0116ff17a87679644052c9f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6af93f9208170e23d88238cc4db6408f555463c53ac18e836d20bbb452778856",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-03-12T17:04:22Z",
    "title_canon_sha256": "ca0e5c6c90f57f47b489cb238d6c2d28eb442813353aef523fa54ae1d9051153"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.05055",
    "kind": "arxiv",
    "version": 1
  }
}