Pith Number

pith:LHFU6Y5U

pith:2012:LHFU6Y5UQP3E2YR2ETQXNWNTBE

not attested not anchored not stored refs pending

Comparison of Persistent Homologies for Vector Functions: from continuous to discrete and back

Claudia Landi, Marc Ethier, Niccol\`o Cavazza, Patrizio Frosini, Tomasz Kaczynski

arxiv:1201.3217 v2 · 2012-01-16 · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LHFU6Y5UQP3E2YR2ETQXNWNTBE}

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	2026-05-18T03:29:40.841007Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

59cb4f63b483f64d623a24e176d9b3091ef91591888e609b73811b2f77b2df7f

Aliases

arxiv: 1201.3217 · arxiv_version: 1201.3217v2 · doi: 10.48550/arxiv.1201.3217 · pith_short_12: LHFU6Y5UQP3E · pith_short_16: LHFU6Y5UQP3E2YR2 · pith_short_8: LHFU6Y5U

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/LHFU6Y5UQP3E2YR2ETQXNWNTBE \
  | 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: 59cb4f63b483f64d623a24e176d9b3091ef91591888e609b73811b2f77b2df7f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "39ecd5b5dbe8ab2ea8d2a4ed993d1677303ebade80bb2f9a15db8081b3e5adcc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2012-01-16T11:26:55Z",
    "title_canon_sha256": "70df03644766341c08989c906050fadc0889fe8c78edc3539b2eed580dbc7ca3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.3217",
    "kind": "arxiv",
    "version": 2
  }
}