Pith Number

pith:UYUVSPGT

pith:2015:UYUVSPGT357C7LSQ3GJ57XF6HT

not attested not anchored not stored refs pending

Saddle-free Hessian-free Optimization

Martin Arjovsky

arxiv:1506.00059 v3 · 2015-05-30 · cs.NA · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UYUVSPGT357C7LSQ3GJ57XF6HT}

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	2026-05-18T01:00:10.245421Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a629593cd3df7e2fae50d993dfdcbe3cde34ff74475f777928029efea6800e1b

Aliases

arxiv: 1506.00059 · arxiv_version: 1506.00059v3 · doi: 10.48550/arxiv.1506.00059 · pith_short_12: UYUVSPGT357C · pith_short_16: UYUVSPGT357C7LSQ · pith_short_8: UYUVSPGT

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/UYUVSPGT357C7LSQ3GJ57XF6HT \
  | 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: a629593cd3df7e2fae50d993dfdcbe3cde34ff74475f777928029efea6800e1b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "84e0d7361ba64145591b84b1796b34b57a14b2c25192ab4fe4044a211f88d5b2",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2015-05-30T02:42:21Z",
    "title_canon_sha256": "8835e2b784a360ead730dde5daf3cdadc647e6b01417372754e8bfce7b7dd9f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.00059",
    "kind": "arxiv",
    "version": 3
  }
}