Pith Number

pith:PZJMX6BL

pith:2013:PZJMX6BLTFYJUVCEMLH5MROPD7

not attested not anchored not stored refs pending

Clear and Compress: Computing Persistent Homology in Chunks

Jan Reininghaus, Michael Kerber, Ulrich Bauer

arxiv:1303.0477 v1 · 2013-03-03 · 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{PZJMX6BLTFYJUVCEMLH5MROPD7}

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	2026-05-18T03:31:55.864607Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e52cbf82b99709a544462cfd645cf1fcf7d60e96f2cdde00986fb01e832d860

Aliases

arxiv: 1303.0477 · arxiv_version: 1303.0477v1 · doi: 10.48550/arxiv.1303.0477 · pith_short_12: PZJMX6BLTFYJ · pith_short_16: PZJMX6BLTFYJUVCE · pith_short_8: PZJMX6BL

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/PZJMX6BLTFYJUVCEMLH5MROPD7 \
  | 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: 7e52cbf82b99709a544462cfd645cf1fcf7d60e96f2cdde00986fb01e832d860

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f33f5c8793ce294e6771e71daec30e9fdf975e2d218cc7ba9f02915c29f9349d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2013-03-03T09:00:52Z",
    "title_canon_sha256": "8ada2beac996cc0602689a491edea3cf30f9c10c4a7cb77cb9da3e831dcb73f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.0477",
    "kind": "arxiv",
    "version": 1
  }
}