Pith Number

pith:PYPOTM2G

pith:2019:PYPOTM2GWIPJ6UUY2WLTEWKMEM

not attested not anchored not stored refs pending

A Method to Search for Black Hole Candidates with Giant Companions by LAMOST

Hao-Tong Zhang, Hui-Jun Mu, Jianfeng Wu, Jifeng Liu, Jin-Bo Fu, Junfeng Wang, Ling-Lin Zheng, Song Wang, Tuan Yi, Wei-Min Gu, Ya-Juan Lei, Yu Bai, Zhong-Rui Bai

arxiv:1902.02813 v1 · 2019-02-07 · astro-ph.SR · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PYPOTM2GWIPJ6UUY2WLTEWKMEM}

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	2026-05-17T23:52:36.031704Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e1ee9b346b21e9f5298d59732594c23144bddae8f327b3cdead91d4e080153f

Aliases

arxiv: 1902.02813 · arxiv_version: 1902.02813v1 · doi: 10.48550/arxiv.1902.02813 · pith_short_12: PYPOTM2GWIPJ · pith_short_16: PYPOTM2GWIPJ6UUY · pith_short_8: PYPOTM2G

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/PYPOTM2GWIPJ6UUY2WLTEWKMEM \
  | 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: 7e1ee9b346b21e9f5298d59732594c23144bddae8f327b3cdead91d4e080153f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f37960937a3743bcf670072ab8b63429e5b7024244b6e7db17806ab40df0fca",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-02-07T19:31:02Z",
    "title_canon_sha256": "0e54a69935dc732f15174b1f59e66122cd0cf472d0e9693a49cd1c25672ba1b0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.02813",
    "kind": "arxiv",
    "version": 1
  }
}