Pith Number

pith:JVTU3JPY

pith:2010:JVTU3JPYXTNGLFBGBK4GHDDSPZ

not attested not anchored not stored refs pending

The knee in the cosmic ray energy spectrum: a pulsar/supernova origin?

Arnold W. Wolfendale, Tadeusz Wibig

arxiv:1012.4562 v1 · 2010-12-21 · 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{JVTU3JPYXTNGLFBGBK4GHDDSPZ}

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	2026-05-18T02:04:19.569763Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4d674da5f8bcda6594260ab8638c727e61635decf9b6bc391f9cf475b7f29be4

Aliases

arxiv: 1012.4562 · arxiv_version: 1012.4562v1 · doi: 10.48550/arxiv.1012.4562 · pith_short_12: JVTU3JPYXTNG · pith_short_16: JVTU3JPYXTNGLFBG · pith_short_8: JVTU3JPY

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/JVTU3JPYXTNGLFBGBK4GHDDSPZ \
  | 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: 4d674da5f8bcda6594260ab8638c727e61635decf9b6bc391f9cf475b7f29be4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "575b04ba861829047c5a57513000526e15030a9742acd348aaf874a640d14cc8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2010-12-21T07:54:28Z",
    "title_canon_sha256": "7622e4ba66dbf7a9fdd39fe0e23619e06013464b1f1d01274af6ea8f9a96b554"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.4562",
    "kind": "arxiv",
    "version": 1
  }
}