Pith Number

pith:D7YZAIID

pith:1994:D7YZAIIDRLCULX562N4MVVHFGC

not attested not anchored not stored refs pending

On the Origin of Highest Energy Cosmic Rays

D. N. Schramm, G. Sigl, P. Bhattacharjee

arxiv:astro-ph/9403039 v1 · 1994-03-17 · 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{D7YZAIIDRLCULX562N4MVVHFGC}

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	2026-05-18T04:38:04.992384Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ff19021038ac545dfbed378cad4e530bc86aab0a3e6359ac4f02ee95fcbda47

Aliases

arxiv: astro-ph/9403039 · arxiv_version: astro-ph/9403039v1 · doi: 10.48550/arxiv.astro-ph/9403039 · pith_short_12: D7YZAIIDRLCU · pith_short_16: D7YZAIIDRLCULX56 · pith_short_8: D7YZAIID

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/D7YZAIIDRLCULX562N4MVVHFGC \
  | 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: 1ff19021038ac545dfbed378cad4e530bc86aab0a3e6359ac4f02ee95fcbda47

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "41c98c437dd589b3aa8c8b17877432a1970b803daa616046db56c825f4ba32ab",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1994-03-17T18:24:52Z",
    "title_canon_sha256": "eafbbd2b9f85aa7a7869584d065bfb97c31689f0c4dd44fe1fe33b3b0fde7744"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9403039",
    "kind": "arxiv",
    "version": 1
  }
}