Pith Number

pith:73USOID4

pith:2012:73USOID42HNOJBCWYXGIFUTL27

not attested not anchored not stored refs pending

Numerical methods for checking the regularity of subdivision schemes

Maria Charina

arxiv:1202.2765 v1 · 2012-02-10 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{73USOID42HNOJBCWYXGIFUTL27}

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	2026-05-18T04:02:25.750938Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fee927207cd1dae48456c5cc82d26bd7db69cb1618499a1e68114d8b201c1a37

Aliases

arxiv: 1202.2765 · arxiv_version: 1202.2765v1 · doi: 10.48550/arxiv.1202.2765 · pith_short_12: 73USOID42HNO · pith_short_16: 73USOID42HNOJBCW · pith_short_8: 73USOID4

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/73USOID42HNOJBCWYXGIFUTL27 \
  | 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: fee927207cd1dae48456c5cc82d26bd7db69cb1618499a1e68114d8b201c1a37

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c0de7fa7215b0adef65b4f94b9de90772a891688a9a43e044ad010980f3f3b90",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2012-02-10T14:33:37Z",
    "title_canon_sha256": "2640fe97b89c4263028315fc0507bbadd2cc0998b09aaa2875eafb174625a9ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.2765",
    "kind": "arxiv",
    "version": 1
  }
}