Pith Number

pith:5URXFBVT

pith:2018:5URXFBVTQ3R2YWIVORF3YFU7WW

not attested not anchored not stored refs pending

An Approximate Newton Smoothing Method for Shape Optimization

Jonas Kusch, Nicolas R. Gauger, Stephan Schmidt

arxiv:1807.11232 v1 · 2018-07-30 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5URXFBVTQ3R2YWIVORF3YFU7WW}

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	2026-05-18T00:09:32.546308Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed237286b386e3ac5915744bbc169fb58d45f4fd2f7bf02a5b8259a5168a559e

Aliases

arxiv: 1807.11232 · arxiv_version: 1807.11232v1 · doi: 10.48550/arxiv.1807.11232 · pith_short_12: 5URXFBVTQ3R2 · pith_short_16: 5URXFBVTQ3R2YWIV · pith_short_8: 5URXFBVT

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/5URXFBVTQ3R2YWIVORF3YFU7WW \
  | 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: ed237286b386e3ac5915744bbc169fb58d45f4fd2f7bf02a5b8259a5168a559e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "089b1fe73f5eecbb56a11b94d43d5122a6d798b5898248c088ad62712355ab8f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-07-30T08:47:18Z",
    "title_canon_sha256": "d223d833991be63201f61c2065ad1f925aa7c4826aec376fffe5fd00e5690492"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.11232",
    "kind": "arxiv",
    "version": 1
  }
}