Pith Number

pith:25TYOX6G

pith:2012:25TYOX6GAABJGLTDNMJ5V7QVBY

not attested not anchored not stored refs pending

Optimizing F-measure: A Tale of Two Approaches

Hai Leong Chieu (DSO National Laboratories), Kian Ming Chai (DSO National Laboratories), Wee Sun Lee (NUS), Ye Nan (NUS)

arxiv:1206.4625 v1 · 2012-06-18 · 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{25TYOX6GAABJGLTDNMJ5V7QVBY}

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	2026-05-18T03:53:04.538380Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d767875fc60002932e636b13dafe150e1dacb2c66e2249e13386ad078cce5188

Aliases

arxiv: 1206.4625 · arxiv_version: 1206.4625v1 · doi: 10.48550/arxiv.1206.4625 · pith_short_12: 25TYOX6GAABJ · pith_short_16: 25TYOX6GAABJGLTD · pith_short_8: 25TYOX6G

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/25TYOX6GAABJGLTDNMJ5V7QVBY \
  | 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: d767875fc60002932e636b13dafe150e1dacb2c66e2249e13386ad078cce5188

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf64319ed58b596fd293711b828e22dbe719e9d20e07c228c5317f6ebf504e1c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2012-06-18T15:07:04Z",
    "title_canon_sha256": "80f56a20d2f2f1c226e51ac97bf1024e4e9340d629f5d15026765bb28665503a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.4625",
    "kind": "arxiv",
    "version": 1
  }
}