Pith Number

pith:QZQKOELQ

pith:2014:QZQKOELQ7G2SBJEE4BTPKXVSKY

not attested not anchored not stored refs pending

Combinatorial presentation of multidimensional persistent homology

Francesco Vaccarino, Martina Scolamiero, Wojciech Chacholski

arxiv:1409.7936 v1 · 2014-09-28 · math.AT · cs.CG · 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{QZQKOELQ7G2SBJEE4BTPKXVSKY}

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	2026-05-18T02:41:34.036768Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8660a71170f9b520a484e066f55eb25624657fb2fa4d3f0ad21d3c2d75308def

Aliases

arxiv: 1409.7936 · arxiv_version: 1409.7936v1 · doi: 10.48550/arxiv.1409.7936 · pith_short_12: QZQKOELQ7G2S · pith_short_16: QZQKOELQ7G2SBJEE · pith_short_8: QZQKOELQ

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/QZQKOELQ7G2SBJEE4BTPKXVSKY \
  | 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: 8660a71170f9b520a484e066f55eb25624657fb2fa4d3f0ad21d3c2d75308def

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c8dab81ec4be8a4401b9c17313aa456ab3f3afc82e0faeb33a3b5567854c05e",
    "cross_cats_sorted": [
      "cs.CG",
      "math.AC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2014-09-28T17:49:29Z",
    "title_canon_sha256": "59115f2b39efbc44c696c22301c71979f934c7ad3ae70a151a24848e3b960bc8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.7936",
    "kind": "arxiv",
    "version": 1
  }
}