Pith Number

pith:2XWRQDHU

pith:2003:2XWRQDHUFYYLIIE7OBIAM76BCT

not attested not anchored not stored refs pending

Optical and near-infrared observations of the GRB020405 afterglow

A. Delsanti, A. Fruchter, A.J. Castro-Tirado, A.J. Levan, A. Simoncelli, C. Kouveliotou, E. Maiorano, E. Palazzi, E. Pian, E.P.J. van den Heuvel, E. Rol, F. Frontera, H. Pedersen, I. Burud, I. Salamanca, J.E. Rhoads, J. Gorosabel, J. Hjorth, J. M. Castro Cer\'on, J.P.U. Fynbo, L. Amati, L. Christensen, L. Kaper, L.K. Hunt, L. Nicastro, M. Pannella, N. Masetti, N.R. Tanvir, P.M. Vreeswijk, R.A.M.J. Wijers, R. Falomo, R. Sagar, S.B. Pandey, S. Klose, S. Savaglio, V. Mohan

arxiv:astro-ph/0302350 v2 · 2003-02-18 · 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{2XWRQDHUFYYLIIE7OBIAM76BCT}

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	2026-07-04T15:32:02.299682Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5ed180cf42e30b4209f7050067fc114c2a2b19b4467b0fe330a5f88b6cdd869

Aliases

arxiv: astro-ph/0302350 · arxiv_version: astro-ph/0302350v2 · doi: 10.48550/arxiv.astro-ph/0302350 · pith_short_12: 2XWRQDHUFYYL · pith_short_16: 2XWRQDHUFYYLIIE7 · pith_short_8: 2XWRQDHU

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/2XWRQDHUFYYLIIE7OBIAM76BCT \
  | 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: d5ed180cf42e30b4209f7050067fc114c2a2b19b4467b0fe330a5f88b6cdd869

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "876fccc8748ace48fda96930e226f70c2ebfa886bc54d5f21a194e509229d56e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-02-18T11:39:57Z",
    "title_canon_sha256": "6f5efd067c830af3040d839f1905f95b18becfb4f258639a47165945defd66e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0302350",
    "kind": "arxiv",
    "version": 2
  }
}