Pith Number

pith:LIE4MELV

pith:2017:LIE4MELVMJ4W7ZJNCQ7AZ7BOWI

not attested not anchored not stored refs pending

Spectroscopic properties of a two-dimensional time-dependent Cepheid model I. Description and validation of the model

B. Freytag, B. Lemasle, H.-G. Ludwig, M. Marconi, V. Vasilyev

arxiv:1709.03905 v1 · 2017-09-12 · 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{LIE4MELVMJ4W7ZJNCQ7AZ7BOWI}

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	2026-05-18T00:31:39.884138Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5a09c6117562796fe52d143e0cfc2eb23defdcdcd4c0fa23a61c900f628fb414

Aliases

arxiv: 1709.03905 · arxiv_version: 1709.03905v1 · doi: 10.48550/arxiv.1709.03905 · pith_short_12: LIE4MELVMJ4W · pith_short_16: LIE4MELVMJ4W7ZJN · pith_short_8: LIE4MELV

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/LIE4MELVMJ4W7ZJNCQ7AZ7BOWI \
  | 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: 5a09c6117562796fe52d143e0cfc2eb23defdcdcd4c0fa23a61c900f628fb414

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4bc2c4e9433f13895f55ff203007457fd85ef08333d5038225452ee17a84f0d2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-09-12T15:17:30Z",
    "title_canon_sha256": "496aa14f2f04f5c7e82041542e7fc085a42d0a56b48eadd8ec433aede49cce8a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.03905",
    "kind": "arxiv",
    "version": 1
  }
}