Pith Number

pith:2MBFPEJS

pith:2009:2MBFPEJSBRG4FKUUWBQOQHXZXJ

not attested not anchored not stored refs pending

Optimization of large homogeneous air Cherenkov arrays and application to the design of a 1TeV-100TeV gamma-ray observatory

Pierre Colin, Stephan LeBohec

arxiv:0909.3792 v1 · 2009-09-21 · astro-ph.IM · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2MBFPEJSBRG4FKUUWBQOQHXZXJ}

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	2026-05-18T02:34:29.395353Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3025791320c4dc2aa94b060e81ef9ba63eac06d6e7bae123bf843b4f1b5967b

Aliases

arxiv: 0909.3792 · arxiv_version: 0909.3792v1 · doi: 10.48550/arxiv.0909.3792 · pith_short_12: 2MBFPEJSBRG4 · pith_short_16: 2MBFPEJSBRG4FKUU · pith_short_8: 2MBFPEJS

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/2MBFPEJSBRG4FKUUWBQOQHXZXJ \
  | 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: d3025791320c4dc2aa94b060e81ef9ba63eac06d6e7bae123bf843b4f1b5967b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "50bf2319f4f8d2d9ecc04e840ffb7053dacd46a009748b3f93cb130c3fcfb625",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2009-09-21T14:48:18Z",
    "title_canon_sha256": "54e4342acb92c018083a085690da18bf951ddc36e27a8308a012e85de544bb0f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.3792",
    "kind": "arxiv",
    "version": 1
  }
}