Pith Number

pith:E4BQX53X

pith:2007:E4BQX53XDKSAXWBFZYKAMNTD22

not attested not anchored not stored refs pending

Ultra-High Energy Cosmic Ray production in the polar cap regions of black hole magnetospheres

A.Neronov, D.Semikoz, I.Tkachev

arxiv:0712.1737 v2 · 2007-12-11 · 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{E4BQX53XDKSAXWBFZYKAMNTD22}

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	2026-05-18T02:16:08.618541Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

27030bf7771aa40bd825ce14063663d690e8915f921f138c6ad8e3bb4d6158d5

Aliases

arxiv: 0712.1737 · arxiv_version: 0712.1737v2 · doi: 10.48550/arxiv.0712.1737 · pith_short_12: E4BQX53XDKSA · pith_short_16: E4BQX53XDKSAXWBF · pith_short_8: E4BQX53X

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/E4BQX53XDKSAXWBFZYKAMNTD22 \
  | 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: 27030bf7771aa40bd825ce14063663d690e8915f921f138c6ad8e3bb4d6158d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cac7401ae319c0f926d353a132ffd1a9300ad1e3d938633436304cd26880c089",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-12-11T15:28:12Z",
    "title_canon_sha256": "143105e51a2327a352bae07504c0d2c39a93647494b938256d386443c79dfe7e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0712.1737",
    "kind": "arxiv",
    "version": 2
  }
}