Pith Number

pith:QHZ7F444

pith:2018:QHZ7F4447GXNPMLAGZ4DIW75UN

not attested not anchored not stored refs pending

Multiplicity of Galactic Cepheids from long-baseline interferometry. IV. New detected companions from MIRC and PIONIER observations

A. Gallenne, A. M\'erand, F. Baron, G. H. Schaefer, G. Pietrzy\'nski, J. D. Monnier, N. R. Evans, P. Karczmarek, P. Kervella, R. I. Anderson, R. M. Roettenbacher, S. Borgniet, W. Gieren

arxiv:1812.09989 v1 · 2018-12-24 · 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{QHZ7F4447GXNPMLAGZ4DIW75UN}

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	2026-05-17T23:52:38.954285Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81f3f2f39cf9aed7b1603678345bfda346b5adade6d925754c4e6c693ec395d6

Aliases

arxiv: 1812.09989 · arxiv_version: 1812.09989v1 · doi: 10.48550/arxiv.1812.09989 · pith_short_12: QHZ7F4447GXN · pith_short_16: QHZ7F4447GXNPMLA · pith_short_8: QHZ7F444

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/QHZ7F4447GXNPMLAGZ4DIW75UN \
  | 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: 81f3f2f39cf9aed7b1603678345bfda346b5adade6d925754c4e6c693ec395d6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f245749708fc5c9bd650a0992831fd7d51467d3608c8cd6f0aefb5382b2ee4a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-12-24T21:56:11Z",
    "title_canon_sha256": "4bae130f4c46dd6cd46d1a447c1ec15e2197d6f96e91c60d07ddd666517f5695"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.09989",
    "kind": "arxiv",
    "version": 1
  }
}