Pith Number

pith:A4ZYACFS

pith:2005:A4ZYACFSLBO4EX4LEG3RYO6LZV

not attested not anchored not stored refs pending

The GRB 030328 host: another case of a blue starburst galaxy

A. de Ugarte Postigo (1), A.J. Castro-Tirado (1) ((1) IAA-CSIC, Granada, J. Gorosabel (1), M. Jelinek (1), S. Guziy (1), Spain)

arxiv:astro-ph/0504059 v1 · 2005-04-04 · 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{A4ZYACFSLBO4EX4LEG3RYO6LZV}

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	2026-05-18T04:36:30.142310Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

07338008b2585dc25f8b21b71c3bcbcd58e0617cf6f33605f465aaba884d4650

Aliases

arxiv: astro-ph/0504059 · arxiv_version: astro-ph/0504059v1 · doi: 10.48550/arxiv.astro-ph/0504059 · pith_short_12: A4ZYACFSLBO4 · pith_short_16: A4ZYACFSLBO4EX4L · pith_short_8: A4ZYACFS

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/A4ZYACFSLBO4EX4LEG3RYO6LZV \
  | 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: 07338008b2585dc25f8b21b71c3bcbcd58e0617cf6f33605f465aaba884d4650

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "97211624a9af422f2adfb406c2025c19fac59e6f658f99c9b9a86bd0b9e3391f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-04-04T07:57:30Z",
    "title_canon_sha256": "30ce642a6b038fa462acc67ad34a3964c4be9aa509fef7f4fd945c4a64a692d7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0504059",
    "kind": "arxiv",
    "version": 1
  }
}