Pith Number

pith:3ZPKWCYI

pith:2019:3ZPKWCYIF6KAJ3IC7OLPX4VUQK

not attested not anchored not stored refs pending

A variational approach to the inverse imaging of composite elastic materials

Elliott Ginder, Riku Kanai

arxiv:1903.05835 v1 · 2019-03-14 · 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{3ZPKWCYIF6KAJ3IC7OLPX4VUQK}

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	2026-05-17T23:51:16.020684Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

de5eab0b082f9404ed02fb96fbf2b4828ff13d09bd188120dae6f1b2a14a5629

Aliases

arxiv: 1903.05835 · arxiv_version: 1903.05835v1 · doi: 10.48550/arxiv.1903.05835 · pith_short_12: 3ZPKWCYIF6KA · pith_short_16: 3ZPKWCYIF6KAJ3IC · pith_short_8: 3ZPKWCYI

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/3ZPKWCYIF6KAJ3IC7OLPX4VUQK \
  | 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: de5eab0b082f9404ed02fb96fbf2b4828ff13d09bd188120dae6f1b2a14a5629

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb586f0cfc52ae6bd4bc39aeac43d5e909a37611680685a154db68f3bd8b00fc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-03-14T06:53:48Z",
    "title_canon_sha256": "99c2498e8eb21c1437423322a10f7fb254d263a0683ed21c9545f3d70365a5f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.05835",
    "kind": "arxiv",
    "version": 1
  }
}