Pith Number

pith:JNJUNZCB

pith:2019:JNJUNZCBMQSSWU7UT6OL2EA6KQ

not attested not anchored not stored refs pending

Solar Center--Limb Variation of the Strengths of Spectral Lines: Classification and Interpretation of Observed Trends

S. Ueno, Y. Takeda

arxiv:1905.02306 v1 · 2019-05-07 · 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{JNJUNZCBMQSSWU7UT6OL2EA6KQ}

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	2026-05-17T23:43:34.364726Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4b5346e44164252b53f49f9cbd101e541c507657f3a94e29bd85649bb6d8cfa6

Aliases

arxiv: 1905.02306 · arxiv_version: 1905.02306v1 · doi: 10.48550/arxiv.1905.02306 · pith_short_12: JNJUNZCBMQSS · pith_short_16: JNJUNZCBMQSSWU7U · pith_short_8: JNJUNZCB

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/JNJUNZCBMQSSWU7UT6OL2EA6KQ \
  | 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: 4b5346e44164252b53f49f9cbd101e541c507657f3a94e29bd85649bb6d8cfa6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b6a3bea262cf580155acfd3dafcdf816a8016cac88c2b8d8043d68815cef95c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-05-07T00:53:39Z",
    "title_canon_sha256": "80a8a14c67a38cca680f20da25e3ea622dd40127ce935e797dab2be36c9dbbf4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.02306",
    "kind": "arxiv",
    "version": 1
  }
}