Pith Number

pith:V5TCL7T2

pith:2003:V5TCL7T24OY33A4FXE3SVBDW4J

not attested not anchored not stored refs pending

Gamma-ray burst early optical afterglows: implications for the initial Lorentz factor and the central engine

Bing Zhang, & Peter Meszaros (Penn State University), Shiho Kobayashi

arxiv:astro-ph/0302525 v3 · 2003-02-25 · 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{V5TCL7T24OY33A4FXE3SVBDW4J}

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

Earliest simultaneous multi-color optical observations of GRB 230328B: from 41 seconds to the host-galaxy identification

Receipt and verification

First computed	2026-05-18T04:19:41.644667Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

af6625fe7ae3b1bd8385b9372a8476e240c862c45e941ee49322c16bf8c6e86c

Aliases

arxiv: astro-ph/0302525 · arxiv_version: astro-ph/0302525v3 · doi: 10.48550/arxiv.astro-ph/0302525 · pith_short_12: V5TCL7T24OY3 · pith_short_16: V5TCL7T24OY33A4F · pith_short_8: V5TCL7T2

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/V5TCL7T24OY33A4FXE3SVBDW4J \
  | 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: af6625fe7ae3b1bd8385b9372a8476e240c862c45e941ee49322c16bf8c6e86c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bbc42990eb2d715bc6822e76fff96b4e261842288f8f252b0f435e958f2c5792",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-02-25T16:48:15Z",
    "title_canon_sha256": "e936a9f1424c1584caf1bcebb8516fac5c3e5eb08d94206ea0f8e8e6296e03fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0302525",
    "kind": "arxiv",
    "version": 3
  }
}