Pith Number

pith:OOYALYDC

pith:2009:OOYALYDCYKPSU4FQQVJSKVOYE7

not attested not anchored not stored refs pending

Time Hopping technique for faster reinforcement learning in simulations

Fangyan Dong, Kaoru Hirota, Kohei Nomoto, Petar Kormushev

arxiv:0904.0545 v2 · 2009-04-03 · cs.AI · cs.LG · cs.RO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OOYALYDCYKPSU4FQQVJSKVOYE7}

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	2026-05-18T04:14:06.065579Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

73b005e062c29f2a70b085532555d827cd39ca81ac20a112403609e7bad94057

Aliases

arxiv: 0904.0545 · arxiv_version: 0904.0545v2 · doi: 10.48550/arxiv.0904.0545 · pith_short_12: OOYALYDCYKPS · pith_short_16: OOYALYDCYKPSU4FQ · pith_short_8: OOYALYDC

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/OOYALYDCYKPSU4FQQVJSKVOYE7 \
  | 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: 73b005e062c29f2a70b085532555d827cd39ca81ac20a112403609e7bad94057

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79d4f6c051f02c6edf27bccd37fce30447ad45290e0247d35b85dbf50d068cc0",
    "cross_cats_sorted": [
      "cs.LG",
      "cs.RO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2009-04-03T10:38:06Z",
    "title_canon_sha256": "999a6e575722e01aadf41f7ff98e4b9a371ae9f8072c460f4762129904053686"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.0545",
    "kind": "arxiv",
    "version": 2
  }
}