Pith Number

pith:TXASU6S2

pith:2008:TXASU6S2U4LWS2YNDEESJPNYXY

not attested not anchored not stored refs pending

Analytic calculations of the spectra of ultra-high energy cosmic ray nuclei. I. The case of CMB radiation

R. Aloisio, S. Grigorieva, V. Berezinsky

arxiv:0802.4452 v4 · 2008-02-29 · astro-ph · astro-ph.CO · 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{TXASU6S2U4LWS2YNDEESJPNYXY}

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	2026-05-18T03:22:06.631620Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9dc12a7a5aa717696b0d190924bdb8be015041d684ef1bd34aa331a259b0513b

Aliases

arxiv: 0802.4452 · arxiv_version: 0802.4452v4 · doi: 10.48550/arxiv.0802.4452 · pith_short_12: TXASU6S2U4LW · pith_short_16: TXASU6S2U4LWS2YN · pith_short_8: TXASU6S2

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/TXASU6S2U4LWS2YNDEESJPNYXY \
  | 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: 9dc12a7a5aa717696b0d190924bdb8be015041d684ef1bd34aa331a259b0513b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b4bded1582e89ca0e4ffeb1d235589cbef1b1ad38eff36864be225deb085042",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-02-29T19:41:44Z",
    "title_canon_sha256": "47ada3e83d193da2dbb7b55a23a270e5102de7988967619abe7970cd4505ffed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0802.4452",
    "kind": "arxiv",
    "version": 4
  }
}