Pith Number

pith:7AGECGAL

pith:2017:7AGECGALJJ2DDNWIGI45M4D3K3

not attested not anchored not stored refs pending

Spectroscopic properties of a two-dimensional time-dependent Cepheid model II. Determination of stellar parameters and abundances

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

arxiv:1711.00236 v2 · 2017-11-01 · 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{7AGECGALJJ2DDNWIGI45M4D3K3}

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	2026-05-18T00:20:38.555902Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f80c41180b4a7431b6c83239d6707b56fdde7c1247f14cb464fd46c809b9dcc6

Aliases

arxiv: 1711.00236 · arxiv_version: 1711.00236v2 · doi: 10.48550/arxiv.1711.00236 · pith_short_12: 7AGECGALJJ2D · pith_short_16: 7AGECGALJJ2DDNWI · pith_short_8: 7AGECGAL

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/7AGECGALJJ2DDNWIGI45M4D3K3 \
  | 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: f80c41180b4a7431b6c83239d6707b56fdde7c1247f14cb464fd46c809b9dcc6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7979d2095f3e1a0002d200127f789040c730122bf360cb5e449c49990c8c3488",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-11-01T07:54:44Z",
    "title_canon_sha256": "78caf5497ab991e9d1b6b6edc3876a6ed8f00849b45e82b7c43c76395a3978bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.00236",
    "kind": "arxiv",
    "version": 2
  }
}