Pith Number

pith:Y45CS656

pith:2005:Y45CS656JJ445RXMK5WXSXWWO7

not attested not anchored not stored refs pending

A new reduction of the raw Hipparcos data

Elena Fantino, Floor van Leeuwen

arxiv:astro-ph/0505432 v1 · 2005-05-20 · 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{Y45CS656JJ445RXMK5WXSXWWO7}

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	2026-05-18T04:25:39.676901Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c73a297bbe4a79cec6ec576d795ed677e87f73b1fd4da8737b3015d5c29cb5ca

Aliases

arxiv: astro-ph/0505432 · arxiv_version: astro-ph/0505432v1 · doi: 10.48550/arxiv.astro-ph/0505432 · pith_short_12: Y45CS656JJ44 · pith_short_16: Y45CS656JJ445RXM · pith_short_8: Y45CS656

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/Y45CS656JJ445RXMK5WXSXWWO7 \
  | 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: c73a297bbe4a79cec6ec576d795ed677e87f73b1fd4da8737b3015d5c29cb5ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f7cd81248fda1c48de215f669073b7bc9686f600d2790ef2fe65ce5b383f6cd9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-05-20T09:19:26Z",
    "title_canon_sha256": "c54528daa244c578d3e4cc1f63141e265e91309171a7687e9f6b63bd8dcdcfac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0505432",
    "kind": "arxiv",
    "version": 1
  }
}