Pith Number

pith:5AKRUCHF

pith:2017:5AKRUCHFRAVDYSCBBG2EUCPH5K

not attested not anchored not stored refs pending

A Simple Yet Efficient Rank One Update for Covariance Matrix Adaptation

Qingfu Zhang, Zhenhua Li

arxiv:1710.03996 v3 · 2017-10-11 · cs.NE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5AKRUCHFRAVDYSCBBG2EUCPH5K}

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	2026-05-18T00:32:20.068157Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e8151a08e5882a3c484109b44a09e7eaab7754b14ab3c0a7f6e1b4ef51ff7d5c

Aliases

arxiv: 1710.03996 · arxiv_version: 1710.03996v3 · doi: 10.48550/arxiv.1710.03996 · pith_short_12: 5AKRUCHFRAVD · pith_short_16: 5AKRUCHFRAVDYSCB · pith_short_8: 5AKRUCHF

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/5AKRUCHFRAVDYSCBBG2EUCPH5K \
  | 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: e8151a08e5882a3c484109b44a09e7eaab7754b14ab3c0a7f6e1b4ef51ff7d5c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc1a2ade8644b410120acff99df4831125b1d6fec148d0e873315b014c204488",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NE",
    "submitted_at": "2017-10-11T10:49:59Z",
    "title_canon_sha256": "febe443ce192fb57fdb10f5592512ee1a03483a0b8cd7127c68f34841ae8bf16"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.03996",
    "kind": "arxiv",
    "version": 3
  }
}