Pith Number

pith:LN5GXLZG

pith:2018:LN5GXLZG7FODEF2M4UCQRVLBVZ

not attested not anchored not stored refs pending

Accelerated Stochastic Matrix Inversion: General Theory and Speeding up BFGS Rules for Faster Second-Order Optimization

Filip Hanzely, Peter Richt\'arik, Robert M. Gower, Sebastian Stich

arxiv:1802.04079 v2 · 2018-02-12 · math.OC · cs.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LN5GXLZG7FODEF2M4UCQRVLBVZ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T00:12:48.364059Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5b7a6baf26f95c32174ce50508d561ae58d72f40509b54c6bc404b68faf9deb3

Aliases

arxiv: 1802.04079 · arxiv_version: 1802.04079v2 · doi: 10.48550/arxiv.1802.04079 · pith_short_12: LN5GXLZG7FOD · pith_short_16: LN5GXLZG7FODEF2M · pith_short_8: LN5GXLZG

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/LN5GXLZG7FODEF2M4UCQRVLBVZ \
  | 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: 5b7a6baf26f95c32174ce50508d561ae58d72f40509b54c6bc404b68faf9deb3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67c3eb347d2ae97b3b385756e86685d4bbb4cf74fc11dac455df3bdc7e4eb26b",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-02-12T14:47:55Z",
    "title_canon_sha256": "cb9827dc0b047c96058aa7ff3863cc757be9439dd1aed1337472020c3443296e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.04079",
    "kind": "arxiv",
    "version": 2
  }
}