Pith Number

pith:AFRZW3HK

pith:2018:AFRZW3HKZ5GL2ICEQQCDG6WBU5

not attested not anchored not stored refs pending

Rational RBF-based partition of unity method for efficiently and accurately approximating 3D objects

Emma Perracchione

arxiv:1802.01842 v1 · 2018-02-06 · 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{AFRZW3HKZ5GL2ICEQQCDG6WBU5}

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	2026-05-18T00:24:21.118913Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

01639b6ceacf4cbd20448404337ac1a743919dcfc7ad4f52f65cda9e098517ff

Aliases

arxiv: 1802.01842 · arxiv_version: 1802.01842v1 · doi: 10.48550/arxiv.1802.01842 · pith_short_12: AFRZW3HKZ5GL · pith_short_16: AFRZW3HKZ5GL2ICE · pith_short_8: AFRZW3HK

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/AFRZW3HKZ5GL2ICEQQCDG6WBU5 \
  | 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: 01639b6ceacf4cbd20448404337ac1a743919dcfc7ad4f52f65cda9e098517ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9447fdc9e1c1235d184a130d4ab3c1979aab0190418a0eaff9f2d4c098842cb1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-02-06T08:38:24Z",
    "title_canon_sha256": "3b88a2bb76456b603fe883f76cb2a0cf511faf587685714941f45f9b2ca352a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.01842",
    "kind": "arxiv",
    "version": 1
  }
}