Pith Number

pith:B5YATITB

pith:2010:B5YATITB7QHORWF2376TZVVA2X

not attested not anchored not stored refs pending

Uniqueness of models in persistent homology: the case of curves

Claudia Landi, Patrizio Frosini

arxiv:1012.5783 v1 · 2010-12-28 · math.AT · 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{B5YATITB7QHORWF2376TZVVA2X}

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	2026-05-18T02:04:17.136933Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f7009a261fc0ee8d8badffd3cd6a0d5d3781b3f8189ea5784c6901ef25f249a

Aliases

arxiv: 1012.5783 · arxiv_version: 1012.5783v1 · doi: 10.48550/arxiv.1012.5783 · pith_short_12: B5YATITB7QHO · pith_short_16: B5YATITB7QHORWF2 · pith_short_8: B5YATITB

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/B5YATITB7QHORWF2376TZVVA2X \
  | 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: 0f7009a261fc0ee8d8badffd3cd6a0d5d3781b3f8189ea5784c6901ef25f249a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80ed1474ae61f1c7ec6d6f4fb5c3d3181b828ea7cdb3960b6e9ceb17fe30f536",
    "cross_cats_sorted": [
      "cs.CG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2010-12-28T16:04:27Z",
    "title_canon_sha256": "c4628265ab7fd2a2ce2551240992e057f3db33eeca1058b43abe89f2a6e19d7e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.5783",
    "kind": "arxiv",
    "version": 1
  }
}