Pith Number

pith:YSPA5TRR

pith:2015:YSPA5TRRUJZCHU5EYSHD6ELBUG

not attested not anchored not stored refs pending

Policy Gradient Methods for Off-policy Control

Doina Precup, Lucas Lehnert

arxiv:1512.04105 v1 · 2015-12-13 · cs.AI · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YSPA5TRRUJZCHU5EYSHD6ELBUG}

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	2026-05-18T01:24:23.130451Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c49e0ece31a27223d3a4c48e3f1161a1b9672b88f007b665b31dda521f337b3d

Aliases

arxiv: 1512.04105 · arxiv_version: 1512.04105v1 · doi: 10.48550/arxiv.1512.04105 · pith_short_12: YSPA5TRRUJZC · pith_short_16: YSPA5TRRUJZCHU5E · pith_short_8: YSPA5TRR

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/YSPA5TRRUJZCHU5EYSHD6ELBUG \
  | 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: c49e0ece31a27223d3a4c48e3f1161a1b9672b88f007b665b31dda521f337b3d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad823b615a1e93162c6648f72a32c0504355e11c2e02908a6c32e01fb4b61897",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2015-12-13T19:20:14Z",
    "title_canon_sha256": "fb92655e6dc00483350a1430dc911d93238dcda78d9ad1835b7282a0cbd099a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.04105",
    "kind": "arxiv",
    "version": 1
  }
}