Pith Number

pith:UM44GLJV

pith:2008:UM44GLJVWVX2YSZVETJWVFOBCH

not attested not anchored not stored refs pending

Astronomy with ultra high-energy particles

Joerg R. Hoerandel

arxiv:0803.3040 v1 · 2008-03-20 · 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{UM44GLJVWVX2YSZVETJWVFOBCH}

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	2026-05-18T02:16:00.019887Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a339c32d35b56fac4b3524d36a95c111e677b02ced5e8b1b7189f2005c17313f

Aliases

arxiv: 0803.3040 · arxiv_version: 0803.3040v1 · doi: 10.48550/arxiv.0803.3040 · pith_short_12: UM44GLJVWVX2 · pith_short_16: UM44GLJVWVX2YSZV · pith_short_8: UM44GLJV

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/UM44GLJVWVX2YSZVETJWVFOBCH \
  | 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: a339c32d35b56fac4b3524d36a95c111e677b02ced5e8b1b7189f2005c17313f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48f6fc2b477f3387386b97855c7754f09549a64387d1c17596cf92ebc5afc7b6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-03-20T19:03:19Z",
    "title_canon_sha256": "fa3107108ead006b8e9b1199ffca3048f6a51bba175e40f99ffddf06486b1af4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0803.3040",
    "kind": "arxiv",
    "version": 1
  }
}