Pith Number

pith:2KQRZTK4

pith:2016:2KQRZTK45XHMPMORNAABDCBVQB

not attested not anchored not stored refs pending

VEGA/CHARA interferometric observations of Cepheids. I. A resolved structure around the prototype classical Cepheid delta Cep in the visible spectral range

A. Gallenne, A. Meilland, A. M\'erand, A. Spang, B. Pilecki, D. Graczyk, D. Mourard, E. Poretti, G. Pietrzynski, H. Neilson, I. Tallon-Bosc, J. Breitfelder, J.-M. Clausse, J. Storm, K. Perraut, M. Challouf, M. Rainer, N. Nardetto, P. Berio, P. Fouqu\'e, P. Kervella, P. Mathias, P.Stee, R. Ligi, T. ten Brummelaar, W. Gieren

arxiv:1609.07268 v1 · 2016-09-23 · 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{2KQRZTK45XHMPMORNAABDCBVQB}

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	2026-05-18T01:03:44.860309Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2a11ccd5cedcec7b1d16800118835805d1b87005387d5f661e256b60b058502

Aliases

arxiv: 1609.07268 · arxiv_version: 1609.07268v1 · doi: 10.48550/arxiv.1609.07268 · pith_short_12: 2KQRZTK45XHM · pith_short_16: 2KQRZTK45XHMPMOR · pith_short_8: 2KQRZTK4

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/2KQRZTK45XHMPMORNAABDCBVQB \
  | 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: d2a11ccd5cedcec7b1d16800118835805d1b87005387d5f661e256b60b058502

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f8d9f1bc819158f09b160c8e63c42ef79a961c5cc4c040761f99dffa1ef95bcb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-09-23T08:32:42Z",
    "title_canon_sha256": "074b6fe6e15fdc99999bd8b48fa94634b1093982ed24ea1b36501d8287d43e42"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.07268",
    "kind": "arxiv",
    "version": 1
  }
}