Pith Number

pith:J2IFNI6Y

pith:2018:J2IFNI6Y5QF3BTSM7OVERKENK7

not attested not anchored not stored refs pending

The Knee and the Second Knee of the Cosmic-Ray Energy Spectrum

C.C.H. Jui, D. Ivanov, G.B. Thomson, J.D. Smith, J.H. Kim, J.N. Matthews, S.B. Thomas, T. Abu-Zayyad, Z. Zundel

arxiv:1803.07052 v1 · 2018-03-19 · 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{J2IFNI6Y5QF3BTSM7OVERKENK7}

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	2026-05-18T00:20:40.488114Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4e9056a3d8ec0bb0ce4cfbaa48a88d57c9d6e7884bcf75b7ff50525a8b65ee5b

Aliases

arxiv: 1803.07052 · arxiv_version: 1803.07052v1 · doi: 10.48550/arxiv.1803.07052 · pith_short_12: J2IFNI6Y5QF3 · pith_short_16: J2IFNI6Y5QF3BTSM · pith_short_8: J2IFNI6Y

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/J2IFNI6Y5QF3BTSM7OVERKENK7 \
  | 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: 4e9056a3d8ec0bb0ce4cfbaa48a88d57c9d6e7884bcf75b7ff50525a8b65ee5b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4e04909d5cefa53f5760b0da622ea9d3dc8b7d50c151c6bde9ecb6a39dd3f4f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-03-19T17:30:28Z",
    "title_canon_sha256": "fcf7147ea050446d9f7a42ab821a60cb4f4d01e5a0363244d8010c6d1c043444"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.07052",
    "kind": "arxiv",
    "version": 1
  }
}