Pith Number

pith:YF7IDVOC

pith:2012:YF7IDVOCKG6PSEOZ7MCIVA7DIL

not attested not anchored not stored refs pending

Detecting and correcting the loss of independence in nonlinear conjugate gradient

Sahar Karimi, Stephen Vavasis

arxiv:1202.1479 v2 · 2012-02-07 · 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{YF7IDVOCKG6PSEOZ7MCIVA7DIL}

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	2026-05-18T03:17:34.378936Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c17e81d5c251bcf911d9fb048a83e342e30cecd78038a6012905ebba2630a1fe

Aliases

arxiv: 1202.1479 · arxiv_version: 1202.1479v2 · doi: 10.48550/arxiv.1202.1479 · pith_short_12: YF7IDVOCKG6P · pith_short_16: YF7IDVOCKG6PSEOZ · pith_short_8: YF7IDVOC

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/YF7IDVOCKG6PSEOZ7MCIVA7DIL \
  | 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: c17e81d5c251bcf911d9fb048a83e342e30cecd78038a6012905ebba2630a1fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8b46bfb851ff84ed916ee0f6859bf0293185c2a5d19a760eb4d66b93f917ada7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2012-02-07T18:01:00Z",
    "title_canon_sha256": "3c547b59624edb0b3b498d8f642dc10843f889fc7a2738975f610641c0f0668c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.1479",
    "kind": "arxiv",
    "version": 2
  }
}