Pith Number

pith:ZGF3RXF6

pith:2017:ZGF3RXF6FS7VQI3SEVWKCUCVZC

not attested not anchored not stored refs pending

A Method to Guarantee Local Convergence for Sequential Quadratic Programming with Poor Hessian Approximation

Hans Butler, Mircea Lazar, Tuan T. Nguyen

arxiv:1704.03064 v1 · 2017-04-10 · 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{ZGF3RXF6FS7VQI3SEVWKCUCVZC}

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	2026-05-18T00:46:33.786393Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c98bb8dcbe2cbf582372256ca15055c8ae15bccb0708d7e8eb8c4cfe8ce7c7e3

Aliases

arxiv: 1704.03064 · arxiv_version: 1704.03064v1 · doi: 10.48550/arxiv.1704.03064 · pith_short_12: ZGF3RXF6FS7V · pith_short_16: ZGF3RXF6FS7VQI3S · pith_short_8: ZGF3RXF6

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/ZGF3RXF6FS7VQI3SEVWKCUCVZC \
  | 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: c98bb8dcbe2cbf582372256ca15055c8ae15bccb0708d7e8eb8c4cfe8ce7c7e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d6c7eb514c18339830f40c902a1ded2b1366b97934970498e4f58cf7a71b71e8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2017-04-10T21:51:09Z",
    "title_canon_sha256": "0a83af99f579367f2fe55f64b12c627f1909bd2a0565350909b4dc72b9a6c5a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.03064",
    "kind": "arxiv",
    "version": 1
  }
}