Pith Number

pith:J2UQ47FD

pith:1998:J2UQ47FD6PNFTQF7FVYKHHHRYM

not attested not anchored not stored refs pending

High energy protons from PKS 1333-33

G. E. Romero, J. A. Combi, L. A. Anchordoqui, S. E. Perez Bergliaffa

arxiv:astro-ph/9811378 v1 · 1998-11-24 · 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{J2UQ47FD6PNFTQF7FVYKHHHRYM}

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	2026-05-18T01:07:36.833438Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ea90e7ca3f3da59c0bf2d70a39cf1c339a872fae8e94d904232b45eb5a3621c

Aliases

arxiv: astro-ph/9811378 · arxiv_version: astro-ph/9811378v1 · doi: 10.48550/arxiv.astro-ph/9811378 · pith_short_12: J2UQ47FD6PNF · pith_short_16: J2UQ47FD6PNFTQF7 · pith_short_8: J2UQ47FD

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/J2UQ47FD6PNFTQF7FVYKHHHRYM \
  | 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: 4ea90e7ca3f3da59c0bf2d70a39cf1c339a872fae8e94d904232b45eb5a3621c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8b3adc854a0f20ea140ce1bde22c0886bf50fd1f5da9f5fd428658c46a7e5150",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-11-24T13:04:29Z",
    "title_canon_sha256": "8322d85a472fed8693c364f1987cfac424b987a657ce164f15b6e99defc9d943"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9811378",
    "kind": "arxiv",
    "version": 1
  }
}