Pith Number

pith:VJVMXCHA

pith:2012:VJVMXCHASYH2RWYAEJRN3JSNMQ

not attested not anchored not stored refs pending

Linear-Size Approximations to the Vietoris-Rips Filtration

Donald R. Sheehy

arxiv:1203.6786 v2 · 2012-03-30 · cs.CG · cs.DS

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VJVMXCHASYH2RWYAEJRN3JSNMQ}

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	2026-05-18T03:31:45.047848Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa6acb88e0960fa8db002262dda64d641649dc15d4ce03858c0d79a6461f422d

Aliases

arxiv: 1203.6786 · arxiv_version: 1203.6786v2 · doi: 10.48550/arxiv.1203.6786 · pith_short_12: VJVMXCHASYH2 · pith_short_16: VJVMXCHASYH2RWYA · pith_short_8: VJVMXCHA

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/VJVMXCHASYH2RWYAEJRN3JSNMQ \
  | 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: aa6acb88e0960fa8db002262dda64d641649dc15d4ce03858c0d79a6461f422d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ad6a1d706038eed8ba7e8bf51ab997f593ecef42b36ae01acc8c86b6330c62c",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2012-03-30T12:22:46Z",
    "title_canon_sha256": "fa7a43941e6294275e65859ccdb5cce5a3269237220c91229c2670d397a4b4bd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.6786",
    "kind": "arxiv",
    "version": 2
  }
}