Pith Number

pith:5AMH2EP6

pith:2016:5AMH2EP6TO5HFMQPSUTEKMSXYO

not attested not anchored not stored refs pending

Determination of the proton-to-helium ratio in cosmic rays at ultra-high energies from the tail of the $X_{\rm max}$ distribution

Alexey Yushkov, Julius Krieg, Marek Werner, Markus Risse

arxiv:1609.08586 v2 · 2016-09-27 · 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{5AMH2EP6TO5HFMQPSUTEKMSXYO}

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	2026-05-18T01:01:51.334472Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e8187d11fe9bba72b20f9526453257c3990444dd89b6c0a7f6880612fb2ac8b8

Aliases

arxiv: 1609.08586 · arxiv_version: 1609.08586v2 · doi: 10.48550/arxiv.1609.08586 · pith_short_12: 5AMH2EP6TO5H · pith_short_16: 5AMH2EP6TO5HFMQP · pith_short_8: 5AMH2EP6

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/5AMH2EP6TO5HFMQPSUTEKMSXYO \
  | 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: e8187d11fe9bba72b20f9526453257c3990444dd89b6c0a7f6880612fb2ac8b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ea3fddc4ac5e8f97df4eebaa61e93ed6a1527dd53002a66324a8277fe86ced9e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2016-09-27T19:18:38Z",
    "title_canon_sha256": "989c99b75e3284bf65bfa6081050ef524033af6520d44aff90c3a7d1974297e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.08586",
    "kind": "arxiv",
    "version": 2
  }
}