Pith Number

pith:LFNLIKHP

pith:2019:LFNLIKHPNVRK3AKPXK4C6MBZKT

not attested not anchored not stored refs pending

An Improved Gradient Method with Approximately Optimal Stepsize Based on Conic model for Unconstrained Optimization

Hongwei Liu, Zexian Liu

arxiv:1907.10494 v1 · 2019-07-22 · 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{LFNLIKHPNVRK3AKPXK4C6MBZKT}

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	2026-05-17T23:39:37.747658Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

595ab428ef6d62ad814fbab82f303954e26b8658c4dd803d06ca7100a267d022

Aliases

arxiv: 1907.10494 · arxiv_version: 1907.10494v1 · doi: 10.48550/arxiv.1907.10494 · pith_short_12: LFNLIKHPNVRK · pith_short_16: LFNLIKHPNVRK3AKP · pith_short_8: LFNLIKHP

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/LFNLIKHPNVRK3AKPXK4C6MBZKT \
  | 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: 595ab428ef6d62ad814fbab82f303954e26b8658c4dd803d06ca7100a267d022

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf5cf9ccc8bcc792c70126f4e4679b5dadff4c901807b6786edc62ee4228f1f3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-07-22T09:58:15Z",
    "title_canon_sha256": "a3d9bcaab1542f35a473be2a55d42d04d1a873d556859420d6fccdcafe7e3a01"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.10494",
    "kind": "arxiv",
    "version": 1
  }
}