Pith Number

pith:P7MNDEHE

pith:2020:P7MNDEHEHT6MYZCJYLHRI3AT6C

not attested not anchored not stored refs pending

Bidirectional Model-based Policy Optimization

Hang Lai, Jian Shen, Weinan Zhang, Yong Yu

arxiv:2007.01995 v2 · 2020-07-04 · cs.LG · cs.AI · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P7MNDEHEHT6MYZCJYLHRI3AT6C}

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	2026-07-05T01:38:38.772686Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7fd8d190e43cfccc6449c2cf146c13f096515180da44b52151b07966edf34f24

Aliases

arxiv: 2007.01995 · arxiv_version: 2007.01995v2 · doi: 10.48550/arxiv.2007.01995 · pith_short_12: P7MNDEHEHT6M · pith_short_16: P7MNDEHEHT6MYZCJ · pith_short_8: P7MNDEHE

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/P7MNDEHEHT6MYZCJYLHRI3AT6C \
  | 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: 7fd8d190e43cfccc6449c2cf146c13f096515180da44b52151b07966edf34f24

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "49bfbbe14233d9e0978377030cf3e1b13a58b6f110ef95a38fc7fca9655e37e8",
    "cross_cats_sorted": [
      "cs.AI",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2020-07-04T03:34:09Z",
    "title_canon_sha256": "5ca08a044b914b8c6ecddd86bf45fb8bc8108abf9f0c35bea57c2113771f8d96"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.01995",
    "kind": "arxiv",
    "version": 2
  }
}