Pith Number

pith:RB4DOD5V

pith:2005:RB4DOD5V4Y7JZDECLWI2FS6WBZ

not attested not anchored not stored refs pending

The earliest spectroscopy of the GRB 030329 afterglow with 6-m telescope

A. de Ugarte Postigo, A.J. Castro-Tirado, J. Gorosabel, S. Guziy, T.A. Fatkhullin, T.N.Sokolova, V.G. Kurt, V.N. Komarova, V.S. Lebedev, V.V. Sokolov

arxiv:astro-ph/0505535 v1 · 2005-05-26 · 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{RB4DOD5V4Y7JZDECLWI2FS6WBZ}

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	2026-05-18T04:36:29.968567Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8878370fb5e63e9c8c825d91a2cbd60e7b23f1d5fe87301b567fe75ccc9ca4f8

Aliases

arxiv: astro-ph/0505535 · arxiv_version: astro-ph/0505535v1 · doi: 10.48550/arxiv.astro-ph/0505535 · pith_short_12: RB4DOD5V4Y7J · pith_short_16: RB4DOD5V4Y7JZDEC · pith_short_8: RB4DOD5V

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/RB4DOD5V4Y7JZDECLWI2FS6WBZ \
  | 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: 8878370fb5e63e9c8c825d91a2cbd60e7b23f1d5fe87301b567fe75ccc9ca4f8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "02c7218c62e09058f0bae40e03b2ea487065a9af13a2f99fefe181e2ea8e8840",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-05-26T13:34:44Z",
    "title_canon_sha256": "90ecbf56594e9a19823a7e43bf6b1de191581f4ddd15b06524a01d9a83a87ccd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0505535",
    "kind": "arxiv",
    "version": 1
  }
}