Pith Number

pith:Z2HG64IN

pith:2017:Z2HG64IN7YJLFKVP47ZBQBDPDG

not attested not anchored not stored refs pending

B\'ezier curves that are close to elastica

Ann-Sofie Fisker, David Brander, J. Andreas B{\ae}rentzen, Jens Gravesen

arxiv:1710.09192 v2 · 2017-10-25 · math.NA · cs.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Z2HG64IN7YJLFKVP47ZBQBDPDG}

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	2026-05-18T00:15:37.183894Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ce8e6f710dfe12b2aaafe7f218046f19963d6e2a7300789671eed356d88c5f37

Aliases

arxiv: 1710.09192 · arxiv_version: 1710.09192v2 · doi: 10.48550/arxiv.1710.09192 · pith_short_12: Z2HG64IN7YJL · pith_short_16: Z2HG64IN7YJLFKVP · pith_short_8: Z2HG64IN

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/Z2HG64IN7YJLFKVP47ZBQBDPDG \
  | 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: ce8e6f710dfe12b2aaafe7f218046f19963d6e2a7300789671eed356d88c5f37

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "447c81f2baa90a0e46b13f69c9811d43e5789b9d48a36889cd004695018b4f09",
    "cross_cats_sorted": [
      "cs.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-10-25T12:24:52Z",
    "title_canon_sha256": "8b1b79ad3df5f1bece8a6ee230618cdc344d4c6c286f626e398cc1d044a49863"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.09192",
    "kind": "arxiv",
    "version": 2
  }
}