Pith Number

pith:YK7JR6Q4

pith:1996:YK7JR6Q4EWKEGITARWWQTKKDJO

not attested not anchored not stored refs pending

Very High Energy Gamma-Ray Emission from the Blazar Markarian 421

A.C. Rovero, A.D. Kerrick R.C. Lamb, A.M. Hillas, C.W. Akerlof, C. Wilson, D.A. Carter-Lewis, D.I. Meyer, D.J. Fegan, G. Mohanty, G. Sembroski, J.A. Gaidos, J. Rose, J. Zweerink, M. Chantell, M.F. Cawley, M.S. Schubnell, S. Biller J. Buckley, S. Fennell, T.C. Weekes, V. Connaughton

arxiv:astro-ph/9602068 v1 · 1996-02-14 · 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{YK7JR6Q4EWKEGITARWWQTKKDJO}

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	2026-07-04T15:59:35.163220Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c2be98fa1c25944322608dad09a9434b8443aa09bc19d51274a517671d2535f6

Aliases

arxiv: astro-ph/9602068 · arxiv_version: astro-ph/9602068v1 · doi: 10.48550/arxiv.astro-ph/9602068 · pith_short_12: YK7JR6Q4EWKE · pith_short_16: YK7JR6Q4EWKEGITA · pith_short_8: YK7JR6Q4

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/YK7JR6Q4EWKEGITARWWQTKKDJO \
  | 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: c2be98fa1c25944322608dad09a9434b8443aa09bc19d51274a517671d2535f6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb715f9c61e056aaff9a74a29b09b555546763016734c29c15c49344033ffcc6",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1996-02-14T18:58:21Z",
    "title_canon_sha256": "268f1104c0542e3087f51d546a47e41066a662876dc62697d0ffa9d4269e5e8a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9602068",
    "kind": "arxiv",
    "version": 1
  }
}