Pith Number

pith:J2CDVFLX

pith:2020:J2CDVFLXFKY4CP46Q75FA3OPYL

not attested not anchored not stored refs pending

Astronomical Site Monitoring System at Lijiang Observatory

Bao-Li Lun, Bing-Qiu Chen, Chuan-Jun Wang, Ding-Rong Xiong, Hai-Cheng Feng, Jian-guo Wang, Jin-Ming Bai, Ji-Rong Mao, Kai Ye, Liang Chang, Liang Xu, Shou-Sheng He, Teng-Fei Song, Xiang-Kun Liu, Xiao-Guang Yu, Xiao-Wei Liu, Xi-Liang Zhang, Xu Ding, Yang Huang, Yu-Feng Fan, Yu-Xin Xin

arxiv:2004.12128 v4 · 2020-04-25 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{J2CDVFLXFKY4CP46Q75FA3OPYL}

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	2026-07-05T01:45:03.212261Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4e843a95772ab1c13f9e87fa506dcfc2f6823877301d19e77744c9a0bd985972

Aliases

arxiv: 2004.12128 · arxiv_version: 2004.12128v4 · doi: 10.48550/arxiv.2004.12128 · pith_short_12: J2CDVFLXFKY4 · pith_short_16: J2CDVFLXFKY4CP46 · pith_short_8: J2CDVFLX

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/J2CDVFLXFKY4CP46Q75FA3OPYL \
  | 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: 4e843a95772ab1c13f9e87fa506dcfc2f6823877301d19e77744c9a0bd985972

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f80879148cdfa2d06e31e648c0fbdcad7ec21dd1b0bb367e12a16117ff5876ad",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2020-04-25T12:34:28Z",
    "title_canon_sha256": "6cd283205d1c27a18b56454c5ea96856be668aa89c46793b3d8dfa486aa143f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.12128",
    "kind": "arxiv",
    "version": 4
  }
}