Pith Number

pith:55EG7L3F

pith:2018:55EG7L3FJBNIGGHEDWEZSXELHD

not attested not anchored not stored refs pending

Evolved Policy Gradients

Bradly C. Stadie, Filip Wolski, Jonathan Ho, Phillip Isola, Pieter Abbeel, Rein Houthooft, Richard Y. Chen

arxiv:1802.04821 v2 · 2018-02-13 · cs.LG · 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{55EG7L3FJBNIGGHEDWEZSXELHD}

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	2026-05-18T00:17:18.589806Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef486faf65485a8318e41d89995c8b38d5ffbe619bde5467c7996542abf81022

Aliases

arxiv: 1802.04821 · arxiv_version: 1802.04821v2 · doi: 10.48550/arxiv.1802.04821 · pith_short_12: 55EG7L3FJBNI · pith_short_16: 55EG7L3FJBNIGGHE · pith_short_8: 55EG7L3F

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/55EG7L3FJBNIGGHEDWEZSXELHD \
  | 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: ef486faf65485a8318e41d89995c8b38d5ffbe619bde5467c7996542abf81022

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66ef04f1ef3d4ae97f5c84d5f628606d5c6627e6efa57f89e7a6f2cdf9fbb7c0",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2018-02-13T19:07:43Z",
    "title_canon_sha256": "2baf221de14826c3475cd69e1b0d06a290ecf7fea948b06dcc1f94f3489ed8a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.04821",
    "kind": "arxiv",
    "version": 2
  }
}