Pith Number

pith:ZAPDUDQ7

pith:2000:ZAPDUDQ7G6FN2GZKMRVWZUFDUZ

not attested not anchored not stored refs pending

The Cannonball Model of Gamma Ray Bursts: Spectral and Temporal Properties of the Gamma Rays

Alvaro De R\'ujula, Arnon Dar

arxiv:astro-ph/0012227 v1 · 2000-12-11 · 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{ZAPDUDQ7G6FN2GZKMRVWZUFDUZ}

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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

A revamped understanding of Cosmic Rays and Gamma-Ray Bursts

Receipt and verification

First computed	2026-07-04T15:51:10.618529Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c81e3a0e1f378add1b2a646b6cd0a3a65a3cda2673bf653788aafc32c53869b6

Aliases

arxiv: astro-ph/0012227 · arxiv_version: astro-ph/0012227v1 · doi: 10.48550/arxiv.astro-ph/0012227 · pith_short_12: ZAPDUDQ7G6FN · pith_short_16: ZAPDUDQ7G6FN2GZK · pith_short_8: ZAPDUDQ7

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/ZAPDUDQ7G6FN2GZKMRVWZUFDUZ \
  | 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: c81e3a0e1f378add1b2a646b6cd0a3a65a3cda2673bf653788aafc32c53869b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57edd21826411d7ddd6b372612627646de9b39db9dcfebf4270ae2494bc0fff5",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-12-11T12:38:09Z",
    "title_canon_sha256": "f77f06d5e2c63a49d1f0d4903d6df5fb2a261344a90fd67083d75bbd2556fbe3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0012227",
    "kind": "arxiv",
    "version": 1
  }
}