Pith Number

pith:242B33EF

pith:2003:242B33EFDPX75C7B3WZTZUFSEA

not attested not anchored not stored refs pending

Approaching NGC3079 with VLBI

A. L. Roy (MPIfR, A. Witzel (MPIfR), E. Middelberg (MPIfR), Giub), J. A. Zensus (MPIfR), T. P. Krichbaum (MPIfR)

arxiv:astro-ph/0309382 v1 · 2003-09-15 · 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{242B33EFDPX75C7B3WZTZUFSEA}

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	2026-07-04T14:12:53.849842Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d7341dec851beffe8be1ddb33cd0b2200d560e031c92bf8f0432585c440c7337

Aliases

arxiv: astro-ph/0309382 · arxiv_version: astro-ph/0309382v1 · doi: 10.48550/arxiv.astro-ph/0309382 · pith_short_12: 242B33EFDPX7 · pith_short_16: 242B33EFDPX75C7B · pith_short_8: 242B33EF

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/242B33EFDPX75C7B3WZTZUFSEA \
  | 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: d7341dec851beffe8be1ddb33cd0b2200d560e031c92bf8f0432585c440c7337

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f047f630636cbc6efa8a0e6a4bcfde8fe2b5207645480c356e1467376018deb",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-09-15T09:32:38Z",
    "title_canon_sha256": "3299a7634c74d1f95fa536578bc6b45976aca016fbe55258bd664c15b417f440"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0309382",
    "kind": "arxiv",
    "version": 1
  }
}