Pith Number

pith:Z7XSCATD

pith:1999:Z7XSCATDUMWDLDW6QCIZWCK5BG

not attested not anchored not stored refs pending

Spectral Energy Distributions and Light Curves of GRB 990123 and its Afterglow

A. Fassia, A.G. de Bruyn, A.J. Castro-Tirado, A.K. Pandey, C. Impey, C. Kouveliotou, C. Packham, C. Petry, C. Robinson, D. Band, D. Bhattacharya, E. Falco, E. Leibowitz, E.O. Ofek, E. Rol, G. Pooley, I.A. Smith, J. Heise, J.K. Davies, J. Rhoads, J. Telting, J. van Paradijs, K. Hurley, M. Bremer, M.J. Foster, M.S. Briggs, Nilakshi, N. Tanvir, P. Ibbetson, P.M. Vreeswijk, R.A.M.J. Wijers, R.D. Preece, R.G.M. Rutten, R.G. Strom, R.K.S. Yadav, R.P.J. Tilanus, R. Sagar, R. Swaters, S.F. Green, T.J. Galama, T.R. Geballe

arxiv:astro-ph/9903021 v1 · 1999-03-01 · 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{Z7XSCATDUMWDLDW6QCIZWCK5BG}

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.

Cited by

1 paper in Pith

Early Optical Follow-up of Gamma-Ray Bursts: The Critical Role of Robotic Telescopes

Receipt and verification

First computed	2026-07-04T14:16:35.378353Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cfef210263a32c358ede80919b095d09b4c4e56465febbb49d23a3d94570da5f

Aliases

arxiv: astro-ph/9903021 · arxiv_version: astro-ph/9903021v1 · doi: 10.48550/arxiv.astro-ph/9903021 · pith_short_12: Z7XSCATDUMWD · pith_short_16: Z7XSCATDUMWDLDW6 · pith_short_8: Z7XSCATD

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/Z7XSCATDUMWDLDW6QCIZWCK5BG \
  | 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: cfef210263a32c358ede80919b095d09b4c4e56465febbb49d23a3d94570da5f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b574a5c04b76670f26b697d9268c00bb7182406d21cd0b31384abef2732f95d8",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-03-01T19:57:31Z",
    "title_canon_sha256": "38a77173dea55a38f6cb0ca7e33f6a7b8c14b724edace462d05faafe9f1f06a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9903021",
    "kind": "arxiv",
    "version": 1
  }
}