Pith Number

pith:2H2LUQVR

pith:2004:2H2LUQVRB75UW7YPBQHAOBEVK4

not attested not anchored not stored refs pending

A very low luminosity X-ray flash: XMM-Newton observations of GRB 031203

(2) University of Leicester, (3) USRA/NASA-GSFC), A. Levan (2), D. Watson (1), J. A. Tedds (2), J. Hjorth (1), J. N. Reeves (3), J. P. Osborne (2), K. Pedersen (1), M. J. Ward (2), P. Jakobsson (1), P. T. O'Brien (2), R. Willingale (2) ((1) Copenhagen University, S. A. Vaughan (2)

arxiv:astro-ph/0401225 v2 · 2004-01-13 · 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{2H2LUQVRB75UW7YPBQHAOBEVK4}

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	2026-05-18T04:18:14.474106Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1f4ba42b10ffb4b7f0f0c0e070495570e4154df1d9bf63aad8ec948d5babe14

Aliases

arxiv: astro-ph/0401225 · arxiv_version: astro-ph/0401225v2 · doi: 10.48550/arxiv.astro-ph/0401225 · pith_short_12: 2H2LUQVRB75U · pith_short_16: 2H2LUQVRB75UW7YP · pith_short_8: 2H2LUQVR

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/2H2LUQVRB75UW7YPBQHAOBEVK4 \
  | 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: d1f4ba42b10ffb4b7f0f0c0e070495570e4154df1d9bf63aad8ec948d5babe14

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c87fe3b797fb79e6ba25670dc16ee13679bc0d03081751dcd6c69c4f1ad14095",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-01-13T01:46:54Z",
    "title_canon_sha256": "81d995b38c35ca304d2a3e029a2935b3e204b3e21d0ebf075decb2496c016f7f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0401225",
    "kind": "arxiv",
    "version": 2
  }
}