Pith Number

pith:N47KI2ZT

pith:2018:N47KI2ZTSFBNCB5Y5XML4OZXJK

not attested not anchored not stored refs pending

Policy Optimization as Wasserstein Gradient Flows

Changyou Chen, Chunyuan Li, Lawrence Carin, Ruiyi Zhang

arxiv:1808.03030 v1 · 2018-08-09 · cs.LG · 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{N47KI2ZTSFBNCB5Y5XML4OZXJK}

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	2026-05-18T00:08:30.388049Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6f3ea46b339142d107b8edd8be3b374aa24dfbedfdde9832ed3cd79918df1ec2

Aliases

arxiv: 1808.03030 · arxiv_version: 1808.03030v1 · doi: 10.48550/arxiv.1808.03030 · pith_short_12: N47KI2ZTSFBN · pith_short_16: N47KI2ZTSFBNCB5Y · pith_short_8: N47KI2ZT

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/N47KI2ZTSFBNCB5Y5XML4OZXJK \
  | 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: 6f3ea46b339142d107b8edd8be3b374aa24dfbedfdde9832ed3cd79918df1ec2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "23b2de2706caf524d775a8710fc8075b5552970256e6517bec41d3e824b55355",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2018-08-09T06:19:39Z",
    "title_canon_sha256": "f75224472e1db91e22bbe7c4d1ea6e75dd48fdaeff5987f931b07d4cb4f30a5b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.03030",
    "kind": "arxiv",
    "version": 1
  }
}