Pith Number

pith:OFI5FYUU

pith:2012:OFI5FYUUHSTNRTBLCUBYMOILCI

not attested not anchored not stored refs pending

Efficient Natural Evolution Strategies

Daan Wierstra, Juergen Schmidhuber, Tom Schaul, Yi Sun

arxiv:1209.5853 v1 · 2012-09-26 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OFI5FYUUHSTNRTBLCUBYMOILCI}

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	2026-05-18T03:44:46.150682Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7151d2e2943ca6d8cc2b150386390b1220ac77c59e3e573d2759cecc9df995e1

Aliases

arxiv: 1209.5853 · arxiv_version: 1209.5853v1 · doi: 10.48550/arxiv.1209.5853 · pith_short_12: OFI5FYUUHSTN · pith_short_16: OFI5FYUUHSTNRTBL · pith_short_8: OFI5FYUU

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/OFI5FYUUHSTNRTBLCUBYMOILCI \
  | 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: 7151d2e2943ca6d8cc2b150386390b1220ac77c59e3e573d2759cecc9df995e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7d3865d010f25c3dbd8786a800bfbc6d3fc533548c0244adc0db10c005b8ffd6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2012-09-26T07:42:06Z",
    "title_canon_sha256": "2478a9b486b4198fad8fe74f0b7b8e48f85467a54474d53e5ace5138d30e5586"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.5853",
    "kind": "arxiv",
    "version": 1
  }
}