Pith Number

pith:KRJEXL2Y

pith:2015:KRJEXL2Y4BXLDCOAJIFTE33EMN

not attested not anchored not stored refs pending

On Reconstructability of Quadratic Utility Functions from the Iterations in Gradient Methods

Farhad Farokhi, Iman Shames, Michael G. Rabbat, Mikael Johansson

arxiv:1509.05500 v1 · 2015-09-18 · math.OC · cs.CR · math.PR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KRJEXL2Y4BXLDCOAJIFTE33EMN}

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	2026-05-18T01:32:43.030266Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

54524baf58e06eb189c04a0b326f6463524162095892b415fffa5d6efacffd86

Aliases

arxiv: 1509.05500 · arxiv_version: 1509.05500v1 · doi: 10.48550/arxiv.1509.05500 · pith_short_12: KRJEXL2Y4BXL · pith_short_16: KRJEXL2Y4BXLDCOA · pith_short_8: KRJEXL2Y

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/KRJEXL2Y4BXLDCOAJIFTE33EMN \
  | 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: 54524baf58e06eb189c04a0b326f6463524162095892b415fffa5d6efacffd86

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f4fc41752db834d2db10800d4b64d79ae1d460372846790d19419b0a37338ed1",
    "cross_cats_sorted": [
      "cs.CR",
      "math.PR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2015-09-18T03:56:18Z",
    "title_canon_sha256": "3168f101c63dd8a1b74b6d5d99d2ebc78d463c0c3849605efc87c2f6b0356537"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.05500",
    "kind": "arxiv",
    "version": 1
  }
}