Pith Number

pith:VRHAMYAA

pith:2004:VRHAMYAA2RJTLVNHNV2TGZAB56

not attested not anchored not stored refs pending

The LEDA galaxy distribution: I. Maps of the Local Universe

Francesco Sylos Labini, Georges Paturel, Helene Courtois, Thierry Sousbie

arxiv:astro-ph/0403545 v1 · 2004-03-23 · astro-ph · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VRHAMYAA2RJTLVNHNV2TGZAB56}

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	2026-05-18T02:28:41.324397Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac4e066000d45335d5a76d75336401efbafd893f129b692c2f6b0e4c412373a6

Aliases

arxiv: astro-ph/0403545 · arxiv_version: astro-ph/0403545v1 · doi: 10.48550/arxiv.astro-ph/0403545 · pith_short_12: VRHAMYAA2RJT · pith_short_16: VRHAMYAA2RJTLVNH · pith_short_8: VRHAMYAA

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/VRHAMYAA2RJTLVNHNV2TGZAB56 \
  | 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: ac4e066000d45335d5a76d75336401efbafd893f129b692c2f6b0e4c412373a6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3382602422b070b584d9533dc3251e7293996f3c209e8a6d16a06e9b33f57d22",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-03-23T09:49:32Z",
    "title_canon_sha256": "5a9d3fb4a60f65fe48f0feadc8361542feb134c05fc44ee9942ae020febffe62"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0403545",
    "kind": "arxiv",
    "version": 1
  }
}