Pith Number

pith:EWFDJ76V

pith:2017:EWFDJ76V732I4WIX5TLE4N2RU4

not attested not anchored not stored refs pending

Spatially resolved spectroscopy across stellar surfaces. I. Using exoplanet transits to analyze 3-D stellar atmospheres

Dainis Dravins, Erik Dahl\'en, Hans-G\"unter Ludwig, Hiva Pazira

arxiv:1708.01616 v1 · 2017-08-04 · astro-ph.SR · astro-ph.EP · 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{EWFDJ76V732I4WIX5TLE4N2RU4}

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	2026-05-18T00:34:46.677962Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

258a34ffd5fef48e5917ecd64e3751a7317cd5470ef1fb12dc968ffdff042cac

Aliases

arxiv: 1708.01616 · arxiv_version: 1708.01616v1 · doi: 10.48550/arxiv.1708.01616 · pith_short_12: EWFDJ76V732I · pith_short_16: EWFDJ76V732I4WIX · pith_short_8: EWFDJ76V

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/EWFDJ76V732I4WIX5TLE4N2RU4 \
  | 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: 258a34ffd5fef48e5917ecd64e3751a7317cd5470ef1fb12dc968ffdff042cac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "740b58c4306b66dc7d6e741fc420c1580b582f7ef7add77818e87dc7ef60d859",
    "cross_cats_sorted": [
      "astro-ph.EP",
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-08-04T18:00:00Z",
    "title_canon_sha256": "cad1b805b7bb4e69cab24f441a2a6d300293fb6a9d6a4c85645e9ae9002bd293"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.01616",
    "kind": "arxiv",
    "version": 1
  }
}