Pith Number

pith:T3GZL7OV

pith:1999:T3GZL7OVZK2ZUG65X7IT2YRXPF

not attested not anchored not stored refs pending

Can Gamma Ray Bursts Produce the Observed Cosmic Rays Above $10^{20}$ eV?

F. W. Stecker (NASA/Goddard Space Flight Center)

arxiv:astro-ph/9911269 v4 · 1999-11-15 · 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{T3GZL7OVZK2ZUG65X7IT2YRXPF}

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	2026-05-18T04:21:32.026916Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9ecd95fdd5cab59a1bddbfd13d6237795a6b648f4d1bdc719e917867a5b1e373

Aliases

arxiv: astro-ph/9911269 · arxiv_version: astro-ph/9911269v4 · doi: 10.48550/arxiv.astro-ph/9911269 · pith_short_12: T3GZL7OVZK2Z · pith_short_16: T3GZL7OVZK2ZUG65 · pith_short_8: T3GZL7OV

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/T3GZL7OVZK2ZUG65X7IT2YRXPF \
  | 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: 9ecd95fdd5cab59a1bddbfd13d6237795a6b648f4d1bdc719e917867a5b1e373

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "88c3093bdf1d5e8689a06fdbbc2915aafb72908632eeceab06d11fe43ad09ebc",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-11-15T15:48:55Z",
    "title_canon_sha256": "3c12ab52c0cf66a6b2e46cd973f4cb4ac7a673b44c6c485aaf47afcf68e37000"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9911269",
    "kind": "arxiv",
    "version": 4
  }
}