Pith Number

pith:2AHU2STJ

pith:2025:2AHU2STJBZLWZG7VVUMYZHQ7P3

not attested not anchored not stored refs pending

Constraint Multi-class Positive and Unlabeled Learning for Distantly Supervised Named Entity Recognition

Hong Zhang, Min Cen, Yuzhe Zhang

arxiv:2504.04963 v1 · 2025-04-07 · cs.CL

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2AHU2STJBZLWZG7VVUMYZHQ7P3}

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	2026-07-05T10:45:32.072089Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d00f4d4a690e576c9bf5ad198c9e1f7eedf35f703368a609815c241b78eacb11

Aliases

arxiv: 2504.04963 · arxiv_version: 2504.04963v1 · doi: 10.48550/arxiv.2504.04963 · pith_short_12: 2AHU2STJBZLW · pith_short_16: 2AHU2STJBZLWZG7V · pith_short_8: 2AHU2STJ

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/2AHU2STJBZLWZG7VVUMYZHQ7P3 \
  | 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: d00f4d4a690e576c9bf5ad198c9e1f7eedf35f703368a609815c241b78eacb11

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21307a072f4a7ff5bbbed9dc54cdd489422c2a62af825a12864ea185859a02c0",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-04-07T11:51:41Z",
    "title_canon_sha256": "be0f7f2db737598b7539d487340188cfd83dfdcf18b227db63cde3d9785dfb64"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.04963",
    "kind": "arxiv",
    "version": 1
  }
}