Pith Number

pith:IVVFV72U

pith:2001:IVVFV72U2PUDKQ3TBG2IJ4QNKL

not attested not anchored not stored refs pending

On the Near-Infrared Size of Vega

David R. Ciardi, Elizabeth A. Lada, Gerard T. van Belle, Rachel L. Akeson, Robert R. Thompson, Steve B. Howell

arxiv:astro-ph/0105561 v1 · 2001-05-31 · 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{IVVFV72U2PUDKQ3TBG2IJ4QNKL}

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	2026-05-18T01:07:45.803269Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

456a5aff54d3e835437309b484f20d52e37a3e7361ba66f149f72f7a2da5a44d

Aliases

arxiv: astro-ph/0105561 · arxiv_version: astro-ph/0105561v1 · doi: 10.48550/arxiv.astro-ph/0105561 · pith_short_12: IVVFV72U2PUD · pith_short_16: IVVFV72U2PUDKQ3T · pith_short_8: IVVFV72U

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/IVVFV72U2PUDKQ3TBG2IJ4QNKL \
  | 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: 456a5aff54d3e835437309b484f20d52e37a3e7361ba66f149f72f7a2da5a44d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "20d01f0c02b7a40c2f39a321edb862ac4326e9597b21c7fa12fd4d503c15babc",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-05-31T17:59:28Z",
    "title_canon_sha256": "8b684bc850a78924cfe7fa7595a938ea646b4f898b12edf8a5138c69d0d5a3ec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0105561",
    "kind": "arxiv",
    "version": 1
  }
}