Pith Number

pith:ND5AZFQO

pith:2019:ND5AZFQOPVYTABEN5ZVUQ2ONDO

not attested not anchored not stored refs pending

A Bad Arm Existence Checking Problem

Atsuyoshi Nakamura, Junya Honda, Koji Tabata, Tamiki Komatsuzaki

arxiv:1901.11200 v1 · 2019-01-31 · 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{ND5AZFQOPVYTABEN5ZVUQ2ONDO}

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	2026-05-17T23:55:02.419706Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68fa0c960e7d7130048dee6b4869cd1b8116b450dbaeae9d5d8fc73170aa01c1

Aliases

arxiv: 1901.11200 · arxiv_version: 1901.11200v1 · doi: 10.48550/arxiv.1901.11200 · pith_short_12: ND5AZFQOPVYT · pith_short_16: ND5AZFQOPVYTABEN · pith_short_8: ND5AZFQO

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/ND5AZFQOPVYTABEN5ZVUQ2ONDO \
  | 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: 68fa0c960e7d7130048dee6b4869cd1b8116b450dbaeae9d5d8fc73170aa01c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66b6b859b676dfae2f3e8c0286fb321e183e58d1a2ee54c18c2d3960027d9a29",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-01-31T03:46:06Z",
    "title_canon_sha256": "7d9e583f5d3557a39dedfc089c44c9cc611a6b8e0c15b67ddc99053caff1f1ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.11200",
    "kind": "arxiv",
    "version": 1
  }
}