Pith Number

pith:VUA7EVFX

pith:2019:VUA7EVFXTKF34RB6UFZVSJMBX2

not attested not anchored not stored refs pending

Fast Inversion of Solar Ca II Spectra in Non-Local Thermodynamic Equilibrium

C. Beck, C. Kiessner, S. Gosain

arxiv:1904.11843 v1 · 2019-04-26 · 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{VUA7EVFXTKF34RB6UFZVSJMBX2}

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	2026-05-17T23:43:02.358458Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad01f254b79a8bbe443ea173592581be97b7068e29692490e336efc93ea57bc7

Aliases

arxiv: 1904.11843 · arxiv_version: 1904.11843v1 · doi: 10.48550/arxiv.1904.11843 · pith_short_12: VUA7EVFXTKF3 · pith_short_16: VUA7EVFXTKF34RB6 · pith_short_8: VUA7EVFX

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/VUA7EVFXTKF34RB6UFZVSJMBX2 \
  | 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: ad01f254b79a8bbe443ea173592581be97b7068e29692490e336efc93ea57bc7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "29d4fd4fb66b21b2781e2ba2ec826a80f3013f6acf5708794f80e4d94f192784",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-04-26T13:40:26Z",
    "title_canon_sha256": "398698f73399002509099acfa052c39d5dfe8f37c4d895c7150748e65f88566a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.11843",
    "kind": "arxiv",
    "version": 1
  }
}