Pith Number

pith:3SX2RQDQ

pith:2018:3SX2RQDQR4T6C4ON32KH532KWW

not attested not anchored not stored refs pending

Upgraded Photometric System of The 85-cm Telescope at Xinglong Station

Chunhai Bai, Guojie Feng, Jianghua Wu, Jianning Fu, Peng Qiu, Taoran Li, WenZhao Zhang, Xianqun Zeng, Xiaojun Jiang, Yong Zhao, Zhou Fan

arxiv:1804.08565 v1 · 2018-04-23 · 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{3SX2RQDQR4T6C4ON32KH532KWW}

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	2026-05-18T00:17:47.893953Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dcafa8c0708f27e171cdde947eef4ab598fcba82fe7f902ecbbb932d5fd47b61

Aliases

arxiv: 1804.08565 · arxiv_version: 1804.08565v1 · doi: 10.48550/arxiv.1804.08565 · pith_short_12: 3SX2RQDQR4T6 · pith_short_16: 3SX2RQDQR4T6C4ON · pith_short_8: 3SX2RQDQ

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/3SX2RQDQR4T6C4ON32KH532KWW \
  | 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: dcafa8c0708f27e171cdde947eef4ab598fcba82fe7f902ecbbb932d5fd47b61

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b02f0d72e9150eee5a630e4f9526a1bf816e7c846f5c449c55ded86730384a57",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-04-23T16:59:53Z",
    "title_canon_sha256": "5965f79e9c80a8bd20b9b70f5ed3fdf79d41285553eb76d5283a4994ba03cca3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.08565",
    "kind": "arxiv",
    "version": 1
  }
}