Pith Number

pith:CBJEGRAY

pith:2005:CBJEGRAY5SHD4LM4VYOFTW7UBN

not attested not anchored not stored refs pending

Is Arcturus a well-understood K giant? Test of model atmospheres and potential companion detection by near-infrared interferometry

C. Waelkens, G. Perrin, K. Eriksson, L. Decin, M. G. Lacasse, P. A. Schuller, P. J. Bord\'e, R. Millan-Gabet, S. T. Ridgway, T. Verhoelst, W. A. Traub

arxiv:astro-ph/0501669 v1 · 2005-01-31 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CBJEGRAY5SHD4LM4VYOFTW7UBN}

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	2026-07-04T16:50:44.288792Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1052434418ec8e3e2d9cae1c59dbf40b7cc796aa4938a712f0b4844b8f193e52

Aliases

arxiv: astro-ph/0501669 · arxiv_version: astro-ph/0501669v1 · doi: 10.48550/arxiv.astro-ph/0501669 · pith_short_12: CBJEGRAY5SHD · pith_short_16: CBJEGRAY5SHD4LM4 · pith_short_8: CBJEGRAY

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/CBJEGRAY5SHD4LM4VYOFTW7UBN \
  | 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: 1052434418ec8e3e2d9cae1c59dbf40b7cc796aa4938a712f0b4844b8f193e52

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d06dc5af2404623dab58433b7ce4d22bc2f6b049c44a70bf69d9572bfc3c0ea2",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-01-31T12:54:34Z",
    "title_canon_sha256": "587f1c730057f7c777fe9c07f1fc6df84bb3b3e653afaae2a38a7e5ed9917aea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0501669",
    "kind": "arxiv",
    "version": 1
  }
}