Pith Number

pith:U2M42M2Y

pith:2019:U2M42M2Y5MVBE22D4CZVODI6VS

not attested not anchored not stored refs pending

Complexity and performance of an Augmented Lagrangian algorithm

E. G. Birgin, J. M. Mart\'inez

arxiv:1907.02401 v1 · 2019-07-04 · 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{U2M42M2Y5MVBE22D4CZVODI6VS}

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.

Cited by

1 paper in Pith

Inexact Proximal-Point Penalty Methods for Constrained Non-Convex Optimization

Receipt and verification

First computed	2026-07-05T02:00:08.586255Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a699cd3358eb2a126b43e0b3570d1eacbf34f9a916f7890e477ab5ed97bb9fc8

Aliases

arxiv: 1907.02401 · arxiv_version: 1907.02401v1 · doi: 10.48550/arxiv.1907.02401 · pith_short_12: U2M42M2Y5MVB · pith_short_16: U2M42M2Y5MVBE22D · pith_short_8: U2M42M2Y

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/U2M42M2Y5MVBE22D4CZVODI6VS \
  | 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: a699cd3358eb2a126b43e0b3570d1eacbf34f9a916f7890e477ab5ed97bb9fc8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f784ef78f19303bc88cb91f5ced8392111381fd9118669068735952eeb81a56d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-07-04T13:45:49Z",
    "title_canon_sha256": "9343bc7583301f32dac60a4103b99f90087226fea6c3453daa9c0eea27d76cfb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.02401",
    "kind": "arxiv",
    "version": 1
  }
}