Pith Number

pith:DKPCJ2JX

pith:2019:DKPCJ2JXJSOLVIMJLRLVGVQ2CT

not attested not anchored not stored refs pending

Positive-Unlabeled Compression on the Cloud

Chang Xu, Chunjing Xu, Dacheng Tao, Hanting Chen, Kai Han, Yixing Xu, Yunhe Wang

arxiv:1909.09757 v2 · 2019-09-21 · 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{DKPCJ2JXJSOLVIMJLRLVGVQ2CT}

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	2026-07-05T00:10:15.937723Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a9e24e9374c9cbaa1895c5753561a14f544fd69abbbe56b662b486758872ea2

Aliases

arxiv: 1909.09757 · arxiv_version: 1909.09757v2 · doi: 10.48550/arxiv.1909.09757 · pith_short_12: DKPCJ2JXJSOL · pith_short_16: DKPCJ2JXJSOLVIMJ · pith_short_8: DKPCJ2JX

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/DKPCJ2JXJSOLVIMJLRLVGVQ2CT \
  | 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: 1a9e24e9374c9cbaa1895c5753561a14f544fd69abbbe56b662b486758872ea2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80ff41c6e71e3922861b4f076eff48e885db4b8d8f5f13a4e8219b7e9fb512bd",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-09-21T01:21:16Z",
    "title_canon_sha256": "bf74de06ced5a907d8fdce90ce18be4908a52db5e2c79bea458669a25a228592"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.09757",
    "kind": "arxiv",
    "version": 2
  }
}