Pith Number

pith:XLK4HRTG

pith:2012:XLK4HRTGXTL4MFLQHJW6F4SRBT

not attested not anchored not stored refs pending

Sparse Q-learning with Mirror Descent

Bo Liu, Sridhar Mahadevan

arxiv:1210.4893 v1 · 2012-10-16 · 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{XLK4HRTGXTL4MFLQHJW6F4SRBT}

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	2026-05-18T03:42:55.116255Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bad5c3c666bcd7c615703a6de2f2510cd685746ac7bbde2d8a689282c5f4a624

Aliases

arxiv: 1210.4893 · arxiv_version: 1210.4893v1 · doi: 10.48550/arxiv.1210.4893 · pith_short_12: XLK4HRTGXTL4 · pith_short_16: XLK4HRTGXTL4MFLQ · pith_short_8: XLK4HRTG

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/XLK4HRTGXTL4MFLQHJW6F4SRBT \
  | 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: bad5c3c666bcd7c615703a6de2f2510cd685746ac7bbde2d8a689282c5f4a624

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "94538e1eccf39b8ccc79ef6f8ad8dc5d422e40e771ff0b3bb94aca68f6654a21",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2012-10-16T17:47:32Z",
    "title_canon_sha256": "ffe054c4bd96efe7a0caa091786bf6e6e535410b9f0f7e80deafb932b3d00ff6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.4893",
    "kind": "arxiv",
    "version": 1
  }
}