Pith Number

pith:SDDZJX2J

pith:1993:SDDZJX2JUJCCREWP7LLPT2W4TM

not attested not anchored not stored refs pending

Gamma Rays and Neutrinos from a Powerful Cosmic Accelerator

Karl Mannheim

arxiv:astro-ph/9306005 v1 · 1993-06-11 · 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{SDDZJX2JUJCCREWP7LLPT2W4TM}

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

Spectral analysis of the blazars Markarian 421 and Markarian 501 with the HAWC Gamma-Ray Observatory

Receipt and verification

First computed	2026-07-04T15:55:06.646567Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90c794df49a2442892cffad6f9eadc9b0a0227f4b1f6b089e89f3aa08e333d32

Aliases

arxiv: astro-ph/9306005 · arxiv_version: astro-ph/9306005v1 · doi: 10.48550/arxiv.astro-ph/9306005 · pith_short_12: SDDZJX2JUJCC · pith_short_16: SDDZJX2JUJCCREWP · pith_short_8: SDDZJX2J

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/SDDZJX2JUJCCREWP7LLPT2W4TM \
  | 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: 90c794df49a2442892cffad6f9eadc9b0a0227f4b1f6b089e89f3aa08e333d32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8f227a6be01d3f9ae087d83d9faf901e5026f1ef815cd68f999a47cfee0a9581",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1993-06-11T12:04:57Z",
    "title_canon_sha256": "eb203eae6f9184eacb13103ce05a036701e7ac7f12afeeea1c552171c09ca39a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9306005",
    "kind": "arxiv",
    "version": 1
  }
}