Pith Number

pith:ABLSA4PZ

pith:2019:ABLSA4PZVCN2A6FIWV5GOVS3Z2

not attested not anchored not stored refs pending

Activity time series of old stars from late F to early K. I. Simulating radial velocity, astrometry, photometry, and chromospheric emission

A.-M. Lagrange, N. Meunier, S. Borgniet, T. Boulet

arxiv:1904.01437 v1 · 2019-04-02 · astro-ph.SR · astro-ph.EP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ABLSA4PZVCN2A6FIWV5GOVS3Z2}

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	2026-05-17T23:41:09.194137Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

00572071f9a89ba078a8b57a67565bce9681f8627467096b0ebef3c7317fecfd

Aliases

arxiv: 1904.01437 · arxiv_version: 1904.01437v1 · doi: 10.48550/arxiv.1904.01437 · pith_short_12: ABLSA4PZVCN2 · pith_short_16: ABLSA4PZVCN2A6FI · pith_short_8: ABLSA4PZ

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/ABLSA4PZVCN2A6FIWV5GOVS3Z2 \
  | 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: 00572071f9a89ba078a8b57a67565bce9681f8627467096b0ebef3c7317fecfd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1666f2d35c859fc638cc27771cb32c67933361303a5b520fd2b68cb743b93dbf",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-04-02T14:05:09Z",
    "title_canon_sha256": "de5cfcceb968b6fcc2f1c1d5e10895b92ef188cfa9643454a0a2030457ede74a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.01437",
    "kind": "arxiv",
    "version": 1
  }
}