Pith Number

pith:HNNLPH66

pith:2015:HNNLPH66UOGG7IZMMQG7FUYISD

not attested not anchored not stored refs pending

DuQuad: an inexact (augmented) dual first order algorithm for quadratic programming

Andrei Patrascu, Ion Necoara

arxiv:1504.05708 v1 · 2015-04-22 · 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{HNNLPH66UOGG7IZMMQG7FUYISD}

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	2026-05-18T02:18:12.899220Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3b5ab79fdea38c6fa32c640df2d30890d054bf6e4939af2afb1a8dc0a7eac6eb

Aliases

arxiv: 1504.05708 · arxiv_version: 1504.05708v1 · doi: 10.48550/arxiv.1504.05708 · pith_short_12: HNNLPH66UOGG · pith_short_16: HNNLPH66UOGG7IZM · pith_short_8: HNNLPH66

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/HNNLPH66UOGG7IZMMQG7FUYISD \
  | 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: 3b5ab79fdea38c6fa32c640df2d30890d054bf6e4939af2afb1a8dc0a7eac6eb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af0184662ca810ed33d1d740e9259bf6d611a26e2921098f7d3e77dcd5a787e2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2015-04-22T09:42:02Z",
    "title_canon_sha256": "a1dde7d46ac36ace8a3d99e3498774c69da95ed6cbe73d49772f5c268d6df462"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.05708",
    "kind": "arxiv",
    "version": 1
  }
}