Pith Number

pith:JRUU5JFM

pith:2012:JRUU5JFMSUW5IGC67BEZOKJGP4

not attested not anchored not stored refs pending

What the radio signal tells about the cosmic-ray air shower

Klaus Werner, Krijn D. de Vries, Olaf Scholten

arxiv:1207.1874 v1 · 2012-07-08 · 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{JRUU5JFMSUW5IGC67BEZOKJGP4}

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	2026-05-18T01:56:26.923940Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c694ea4ac952dd4185ef8499729267f266e5f9f5cb8cf51fdea947d22dad8a6

Aliases

arxiv: 1207.1874 · arxiv_version: 1207.1874v1 · doi: 10.48550/arxiv.1207.1874 · pith_short_12: JRUU5JFMSUW5 · pith_short_16: JRUU5JFMSUW5IGC6 · pith_short_8: JRUU5JFM

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/JRUU5JFMSUW5IGC67BEZOKJGP4 \
  | 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: 4c694ea4ac952dd4185ef8499729267f266e5f9f5cb8cf51fdea947d22dad8a6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c42e5bcedfcb89b14b71709b98430934c9b69ac3f2f5dfbf33839d3923beab8b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-07-08T14:11:34Z",
    "title_canon_sha256": "ac227b385fdd73404b24768dd85124bb3911c6953ca4fb8677f5a6bb1bb87bd0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.1874",
    "kind": "arxiv",
    "version": 1
  }
}