Pith Number

pith:UZ4PV2GD

pith:2016:UZ4PV2GDZRJZIB7TARMF3YZCVR

not attested not anchored not stored refs pending

Opt: A Domain Specific Language for Non-linear Least Squares Optimization in Graphics and Imaging

Christian Theobalt, Gilbert Bernstein, Jonathan Ragan-Kelley, Matthew Fisher, Matthias Nie{\ss}ner, Michael Mara, Michael Zollh\"ofer, Pat Hanrahan, Zachary DeVito

arxiv:1604.06525 v3 · 2016-04-22 · cs.GR · cs.CV · cs.PL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UZ4PV2GDZRJZIB7TARMF3YZCVR}

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	2026-05-18T00:35:44.311810Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a678fae8c3cc539407f304585de322ac683c0f44a9c2ad40b233fa36c5e70b49

Aliases

arxiv: 1604.06525 · arxiv_version: 1604.06525v3 · doi: 10.48550/arxiv.1604.06525 · pith_short_12: UZ4PV2GDZRJZ · pith_short_16: UZ4PV2GDZRJZIB7T · pith_short_8: UZ4PV2GD

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/UZ4PV2GDZRJZIB7TARMF3YZCVR \
  | 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: a678fae8c3cc539407f304585de322ac683c0f44a9c2ad40b233fa36c5e70b49

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aeeaffebed2abb8e67f7d420b5e544c90c5185f896d621250935d975224c3828",
    "cross_cats_sorted": [
      "cs.CV",
      "cs.PL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.GR",
    "submitted_at": "2016-04-22T03:02:59Z",
    "title_canon_sha256": "07577ac2e34f1dc42d051af1bed4fc32633f0076f164622c78f065c2c6e508a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.06525",
    "kind": "arxiv",
    "version": 3
  }
}