Pith Number

pith:OHSZ26EU

pith:2015:OHSZ26EUBNAKL6KPTRC3ISDFG6

not attested not anchored not stored refs pending

Size-optimal Steiner points for Delaunay-refinement on curved surfaces

Darren Engwirda, David Ivers

arxiv:1501.04002 v3 · 2015-01-16 · cs.CG · cs.NA · 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{OHSZ26EUBNAKL6KPTRC3ISDFG6}

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	2026-05-18T01:11:55.247161Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

71e59d78940b40a5f94f9c45b4486537a061eaecc16ea955e7f5a64559a52e74

Aliases

arxiv: 1501.04002 · arxiv_version: 1501.04002v3 · doi: 10.48550/arxiv.1501.04002 · pith_short_12: OHSZ26EUBNAK · pith_short_16: OHSZ26EUBNAKL6KP · pith_short_8: OHSZ26EU

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/OHSZ26EUBNAKL6KPTRC3ISDFG6 \
  | 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: 71e59d78940b40a5f94f9c45b4486537a061eaecc16ea955e7f5a64559a52e74

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa2bc956626dac4d2f55bb91ef5b6803a183bd598d8371b715da305ba7c6a7e0",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2015-01-16T14:55:49Z",
    "title_canon_sha256": "43de28970fe20284c2933140fe15b94c30eb9f38d1dea181a659c94dd8cf9abf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.04002",
    "kind": "arxiv",
    "version": 3
  }
}