Pith Number

pith:X53PKT7A

pith:2000:X53PKT7AYX6QHB4UOYVP5XH62C

not attested not anchored not stored refs pending

Observations of Mira stars with the IOTA/FLUOR interferometer and comparison with Mira star models

Bonn; (2) Observatoire de Paris-Meudon; (3) Harvard-Smithsonian Center for Astrophysics; (4) Institut fuer Theoretische Astrophysik, B. Pras(3), B. Yudin(5) ((1) MPI fuer Radioastronomie, C. Ruilier(2), D. Schertl(1), G. Weigelt(1), Heidelberg; (5) Sternberg Astronomical Institute, K.-H. Hofmann (1), M. Lacasse(3), Moscow), M. Scholz(4), M. Wittkowski(1), R. Millan-Gabet(3), S. Morel(3), T. Bloecker (1), U. Beckmann (1), V. Coude du Foresto(2), V. Shenavrin(5), W. Traub(3)

arxiv:astro-ph/0004013 v1 · 2000-04-03 · 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{X53PKT7AYX6QHB4UOYVP5XH62C}

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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	2026-05-18T01:40:48.113056Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bf76f54fe0c5fd038794762afedcfed0aaa8cf153bfa22d84e2db8ca6fd621e0

Aliases

arxiv: astro-ph/0004013 · arxiv_version: astro-ph/0004013v1 · doi: 10.48550/arxiv.astro-ph/0004013 · pith_short_12: X53PKT7AYX6Q · pith_short_16: X53PKT7AYX6QHB4U · pith_short_8: X53PKT7A

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/X53PKT7AYX6QHB4UOYVP5XH62C \
  | 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: bf76f54fe0c5fd038794762afedcfed0aaa8cf153bfa22d84e2db8ca6fd621e0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b6f986b08fc7d54e1622dc1e58e5af14e1c576e4d6ba0e320855e04e261afa5",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-04-03T10:03:55Z",
    "title_canon_sha256": "38e41dc34583a59231bba51cb11f7d448749436a9a2e25866fb1a6f2a22b07db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0004013",
    "kind": "arxiv",
    "version": 1
  }
}