Pith Number

pith:QK5QMIJ5

pith:2017:QK5QMIJ5W7DIQMJPDAZO7RJ2PH

not attested not anchored not stored refs pending

Precise Reduction of Solar Spectra Observed by the 1-meter New Vacuum Solar Telescope

Kaifan Ji, Yongyuan Xiang, Yuchao Chen, Yu Fu, Yunfang Cai, Zhenggang Li, Zhi Xu

arxiv:1709.09067 v1 · 2017-09-26 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QK5QMIJ5W7DIQMJPDAZO7RJ2PH}

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	2026-05-18T00:32:38.715667Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82bb06213db7c688312f1832efc53a79e9c0e4627fea04a5e953c0e69f7f70f1

Aliases

arxiv: 1709.09067 · arxiv_version: 1709.09067v1 · doi: 10.48550/arxiv.1709.09067 · pith_short_12: QK5QMIJ5W7DI · pith_short_16: QK5QMIJ5W7DIQMJP · pith_short_8: QK5QMIJ5

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/QK5QMIJ5W7DIQMJPDAZO7RJ2PH \
  | 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: 82bb06213db7c688312f1832efc53a79e9c0e4627fea04a5e953c0e69f7f70f1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9786fd8732657df57f9b73ed16c73f058fdf9e06ecfaa49cdb30d64ddfd57036",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-09-26T14:51:46Z",
    "title_canon_sha256": "d09977c77a36a18017cf179d4a5cb6f50cd715e0fff2222f9e3e2adcbfaa2a09"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.09067",
    "kind": "arxiv",
    "version": 1
  }
}