Pith Number

pith:JBR3SM4F

pith:2009:JBR3SM4FGB4KIFMU4XDE43QSJM

not attested not anchored not stored refs pending

Galactic origin of ultrahigh energy cosmic rays

A.A. Mikhailov

arxiv:0902.2609 v1 · 2009-02-16 · 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{JBR3SM4FGB4KIFMU4XDE43QSJM}

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	2026-05-18T02:35:01.110499Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4863b933853078a41594e5c64e6e124b29004fab894acb9ece8f1d407be251d7

Aliases

arxiv: 0902.2609 · arxiv_version: 0902.2609v1 · doi: 10.48550/arxiv.0902.2609 · pith_short_12: JBR3SM4FGB4K · pith_short_16: JBR3SM4FGB4KIFMU · pith_short_8: JBR3SM4F

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/JBR3SM4FGB4KIFMU4XDE43QSJM \
  | 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: 4863b933853078a41594e5c64e6e124b29004fab894acb9ece8f1d407be251d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "821c6bb709397c435ea6e4530dabd80a46cad5aade6cf0884c94515f5e755ec8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-02-16T06:11:29Z",
    "title_canon_sha256": "ffaa859e030a63a104b84ad19acffe66227b7071ebabb8953868b6797eb69249"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.2609",
    "kind": "arxiv",
    "version": 1
  }
}