Pith Number

pith:XX4TTFNM

pith:2019:XX4TTFNMYN4ITXYXIYPLQIMNX4

not attested not anchored not stored refs pending

Efforts estimation of doctors annotating medical image

Jirang Sun, Kehong Yuan, Mingwang Zhu, Qianxi Yang, Shuo Zhang, Weiling Zhao, Xiaobo Zhou, Yang Deng, Yao Sun, Yongpei Zhu, Yue Xu

arxiv:1901.02355 v1 · 2019-01-06 · cs.LG · eess.IV · 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{XX4TTFNMYN4ITXYXIYPLQIMNX4}

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	2026-05-17T23:56:43.511729Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bdf93995acc37889df17461eb8218dbf037b623c24c9535e5755ee7ef4e1b851

Aliases

arxiv: 1901.02355 · arxiv_version: 1901.02355v1 · doi: 10.48550/arxiv.1901.02355 · pith_short_12: XX4TTFNMYN4I · pith_short_16: XX4TTFNMYN4ITXYX · pith_short_8: XX4TTFNM

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/XX4TTFNMYN4ITXYXIYPLQIMNX4 \
  | 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: bdf93995acc37889df17461eb8218dbf037b623c24c9535e5755ee7ef4e1b851

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8e0a7bdec71d6b90ad7b905966ff89fdf90c5891e921e8bd20133ad0b350a51e",
    "cross_cats_sorted": [
      "eess.IV",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-01-06T02:37:54Z",
    "title_canon_sha256": "4808d903e9d5b97e41496fcf7432a53a9d517ca3dfcedf130d2fed9f80df371c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.02355",
    "kind": "arxiv",
    "version": 1
  }
}