Pith Number

pith:IEUI2S7T

pith:2003:IEUI2S7TF3ENGRR44RFTPQVYBI

not attested not anchored not stored refs pending

Composition of Cosmic Rays with the Energy more than 4x10^{19} eV

A.A. Mikhailov

arxiv:astro-ph/0312468 v1 · 2003-12-18 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IEUI2S7TF3ENGRR44RFTPQVYBI}

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	2026-05-18T01:21:09.017561Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

41288d4bf32ec8d3463ce44b37c2b80a2b79fcf4a9cda63b47239d458fd0130d

Aliases

arxiv: astro-ph/0312468 · arxiv_version: astro-ph/0312468v1 · doi: 10.48550/arxiv.astro-ph/0312468 · pith_short_12: IEUI2S7TF3EN · pith_short_16: IEUI2S7TF3ENGRR4 · pith_short_8: IEUI2S7T

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/IEUI2S7TF3ENGRR44RFTPQVYBI \
  | 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: 41288d4bf32ec8d3463ce44b37c2b80a2b79fcf4a9cda63b47239d458fd0130d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca1ff64a0a3e5583d252bd07d2ea5743663a1107e254e7a954d1f4b8cbb59404",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-12-18T01:50:36Z",
    "title_canon_sha256": "96dccd35b4f191de4abe5408182d58500813bb209810416cfc3ba775932e3381"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0312468",
    "kind": "arxiv",
    "version": 1
  }
}