Pith Number

pith:YJDUCSK5

pith:1999:YJDUCSK5WEPS5HOBBGVRASQTTL

not attested not anchored not stored refs pending

Wind Interaction Models for Gamma-Ray Burst Afterglows: The Case for Two Types of Progenitors

Roger A. Chevalier, Zhi-Yun Li (University of Virginia)

arxiv:astro-ph/9908272 v2 · 1999-08-25 · 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{YJDUCSK5WEPS5HOBBGVRASQTTL}

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	2026-05-18T04:18:14.251490Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c24741495db11f2e9dc109ab104a139afcb31582211ec57e5c7fd3ffc2382481

Aliases

arxiv: astro-ph/9908272 · arxiv_version: astro-ph/9908272v2 · doi: 10.48550/arxiv.astro-ph/9908272 · pith_short_12: YJDUCSK5WEPS · pith_short_16: YJDUCSK5WEPS5HOB · pith_short_8: YJDUCSK5

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/YJDUCSK5WEPS5HOBBGVRASQTTL \
  | 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: c24741495db11f2e9dc109ab104a139afcb31582211ec57e5c7fd3ffc2382481

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5bd8d53bc376fb7a41471c1252febd973752975cf9ac29c7f0bfe5dddd48319f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-08-25T00:32:34Z",
    "title_canon_sha256": "390b01e90b32fbf8b92438375a48af399dfd0e6abf25d8e28806140824d989b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9908272",
    "kind": "arxiv",
    "version": 2
  }
}