Pith Number

pith:6XKJX7UP

pith:2011:6XKJX7UPZKE2OVHQL5FCHWPUR7

not attested not anchored not stored refs pending

Ultrahigh Energy Cosmic Rays

Antoine Letessier-Selvon, Todor Stanev

arxiv:1103.0031 v1 · 2011-02-28 · 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{6XKJX7UPZKE2OVHQL5FCHWPUR7}

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	2026-05-18T02:03:01.978354Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f5d49bfe8fca89a754f05f4a23d9f48fd5af32dfa87e77f6fc22859c4bc068ff

Aliases

arxiv: 1103.0031 · arxiv_version: 1103.0031v1 · doi: 10.48550/arxiv.1103.0031 · pith_short_12: 6XKJX7UPZKE2 · pith_short_16: 6XKJX7UPZKE2OVHQ · pith_short_8: 6XKJX7UP

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/6XKJX7UPZKE2OVHQL5FCHWPUR7 \
  | 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: f5d49bfe8fca89a754f05f4a23d9f48fd5af32dfa87e77f6fc22859c4bc068ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd7c2abb6d006239df7b73c4deb40d5f1e3e79c1ced543851168043d44f4acda",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-02-28T21:28:05Z",
    "title_canon_sha256": "344a43f8484331507d0ebb36f8789b8a3b3cca438f22fa59fb341f1f63047cd6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.0031",
    "kind": "arxiv",
    "version": 1
  }
}