Pith Number

pith:QAHIQCJY

pith:2012:QAHIQCJYHULRFPQOV2CHFW3HIK

not attested not anchored not stored refs pending

$Q$- and $A$-Learning Methods for Estimating Optimal Dynamic Treatment Regimes

Anastasios A. Tsiatis, Eric B. Laber, Marie Davidian, Phillip J. Schulte

arxiv:1202.4177 v3 · 2012-02-19 · stat.ME · 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{QAHIQCJYHULRFPQOV2CHFW3HIK}

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	2026-05-18T02:28:05.666429Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

800e8809383d1712be0eae8472db67428078e48f61defda28fcb6ab94c98715c

Aliases

arxiv: 1202.4177 · arxiv_version: 1202.4177v3 · doi: 10.48550/arxiv.1202.4177 · pith_short_12: QAHIQCJYHULR · pith_short_16: QAHIQCJYHULRFPQO · pith_short_8: QAHIQCJY

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/QAHIQCJYHULRFPQOV2CHFW3HIK \
  | 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: 800e8809383d1712be0eae8472db67428078e48f61defda28fcb6ab94c98715c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef06e190971584f1f86c54e4a16cca7bc8437ed5dd41c6f47b1583ef4ca1131e",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2012-02-19T19:17:01Z",
    "title_canon_sha256": "1d9f738c3b517a2e93fff75545c32b4977de7de0013fb7ead3755622c2ca70e4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.4177",
    "kind": "arxiv",
    "version": 3
  }
}