Pith Number

pith:G3ASQFJC

pith:2005:G3ASQFJCMUEEUJHE2ARYJVNXJO

not attested not anchored not stored refs pending

ISO observations and models of galaxies with Hidden Broad Line Regions

A. Efstathiou, R. Siebenmorgen

arxiv:astro-ph/0504432 v2 · 2005-04-20 · 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{G3ASQFJCMUEEUJHE2ARYJVNXJO}

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	2026-07-04T16:52:13.502573Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

36c128152265084a24e4d02384d5b74bb2488e1c3558a7add275f48c9b1c113a

Aliases

arxiv: astro-ph/0504432 · arxiv_version: astro-ph/0504432v2 · doi: 10.48550/arxiv.astro-ph/0504432 · pith_short_12: G3ASQFJCMUEE · pith_short_16: G3ASQFJCMUEEUJHE · pith_short_8: G3ASQFJC

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/G3ASQFJCMUEEUJHE2ARYJVNXJO \
  | 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: 36c128152265084a24e4d02384d5b74bb2488e1c3558a7add275f48c9b1c113a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "09eabe5bda7aaf70d0af9d494497d710d5ada43d8173bb263fbc1c260e6759e5",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-04-20T07:56:11Z",
    "title_canon_sha256": "b80dfd72fb37be69edae690f7a288b8a7fba9def13ab1ffeeac9a072958e9598"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0504432",
    "kind": "arxiv",
    "version": 2
  }
}