Pith Number

pith:QPDKO4D7

pith:2017:QPDKO4D73YQNV5ZYK33WA4ZAGF

not attested not anchored not stored refs pending

Spectral classification and composites of galaxies in LAMOST DR4

A-Li Luo, Jian-Nan Zhang, Li-Li Wang, Shi-Yin Shen, Wen Hou, Wu Hong, Xiao Kong, Yi-Han Song, Yong-Heng Zhao, Yong-Hui Hou, Yong Zhang, Yue-Fei Wang, Zi-Huang Cao

arxiv:1710.10611 v1 · 2017-10-29 · 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{QPDKO4D73YQNV5ZYK33WA4ZAGF}

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	2026-05-18T00:27:18.511690Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83c6a7707fde20daf73856f76073203165679f61730dd26091f13979f4b65298

Aliases

arxiv: 1710.10611 · arxiv_version: 1710.10611v1 · doi: 10.48550/arxiv.1710.10611 · pith_short_12: QPDKO4D73YQN · pith_short_16: QPDKO4D73YQNV5ZY · pith_short_8: QPDKO4D7

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/QPDKO4D73YQNV5ZYK33WA4ZAGF \
  | 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: 83c6a7707fde20daf73856f76073203165679f61730dd26091f13979f4b65298

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ed50f67ad9ba033ca1ee7f6a46b71ba3034a86271f820cd8ae25524de75797ad",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-10-29T13:34:52Z",
    "title_canon_sha256": "a1a5a4c7840fa7d48900b7371e2fda86b9187b426298362fcbec68c5c2d929de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.10611",
    "kind": "arxiv",
    "version": 1
  }
}