Pith Number

pith:QEVGNAVB

pith:2018:QEVGNAVBDTY3NUTYJM52ZPWEHA

not attested not anchored not stored refs pending

Analysis of Noise Contrastive Estimation from the Perspective of Asymptotic Variance

Fumiyasu Komaki, Masatoshi Uehara, Takeru Matsuda

arxiv:1808.07983 v1 · 2018-08-24 · stat.ML · 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{QEVGNAVBDTY3NUTYJM52ZPWEHA}

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	2026-05-18T00:07:22.864273Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

812a6682a11cf1b6d2784b3bacbec438367f627dedaa37a5ec2692b0287118fa

Aliases

arxiv: 1808.07983 · arxiv_version: 1808.07983v1 · doi: 10.48550/arxiv.1808.07983 · pith_short_12: QEVGNAVBDTY3 · pith_short_16: QEVGNAVBDTY3NUTY · pith_short_8: QEVGNAVB

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/QEVGNAVBDTY3NUTYJM52ZPWEHA \
  | 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: 812a6682a11cf1b6d2784b3bacbec438367f627dedaa37a5ec2692b0287118fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "616ad1fb88752d223e1bec40db0430c1568034fc5caeb39937ad9068e24d1a46",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2018-08-24T02:14:45Z",
    "title_canon_sha256": "5f83bef170274874a8dc4d131a40d2bad09c1d1691414564ae31867ee2572a8f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.07983",
    "kind": "arxiv",
    "version": 1
  }
}