Pith Number

pith:XNWDTH7S

pith:2019:XNWDTH7SSKKNDZ2TYU5MPB27Y7

not attested not anchored not stored refs pending

Two-dimensional non-LTE \ion{O}{I} 777\,nm line formation in radiation hydrodynamics simulations of Cepheid atmospheres

A. M. Amarsi, B. Lemasle, H.-G. Ludwig, V. Vasilyev

arxiv:1903.02109 v2 · 2019-03-05 · 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{XNWDTH7SSKKNDZ2TYU5MPB27Y7}

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	2026-05-17T23:48:19.847846Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb6c399ff29294d1e753c53ac7875fc7f630ff3c5add92bff875150844235978

Aliases

arxiv: 1903.02109 · arxiv_version: 1903.02109v2 · doi: 10.48550/arxiv.1903.02109 · pith_short_12: XNWDTH7SSKKN · pith_short_16: XNWDTH7SSKKNDZ2T · pith_short_8: XNWDTH7S

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/XNWDTH7SSKKNDZ2TYU5MPB27Y7 \
  | 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: bb6c399ff29294d1e753c53ac7875fc7f630ff3c5add92bff875150844235978

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "118a0ff6f7fabc6c2ee7335f5fd8e0f2fbdea108e335b0a26c516b8a531ed06f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-03-05T23:30:56Z",
    "title_canon_sha256": "6e3cdd830d18dff42a96320a36b462c78f70bda3249c36eac5d0c4a1f6103d4b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.02109",
    "kind": "arxiv",
    "version": 2
  }
}