Pith Number

pith:QQCGMTQA

pith:2016:QQCGMTQA7GNUX63JSORMSAQ7OX

not attested not anchored not stored refs pending

Testing for uniformity of Ultra-High Energy Cosmic Ray arrival directions

A.A. Ivanov

arxiv:1602.08814 v1 · 2016-02-29 · 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{QQCGMTQA7GNUX63JSORMSAQ7OX}

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	2026-05-18T01:14:12.583346Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8404664e00f99b4bfb6993a2c9021f75e47584c1f261615ce652eaed9911c0ab

Aliases

arxiv: 1602.08814 · arxiv_version: 1602.08814v1 · doi: 10.48550/arxiv.1602.08814 · pith_short_12: QQCGMTQA7GNU · pith_short_16: QQCGMTQA7GNUX63J · pith_short_8: QQCGMTQA

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/QQCGMTQA7GNUX63JSORMSAQ7OX \
  | 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: 8404664e00f99b4bfb6993a2c9021f75e47584c1f261615ce652eaed9911c0ab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a593c8df7a05272d441f5778fa89c2c1d1980b0a6aaa3c0edec3d44380e4b54a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2016-02-29T03:40:18Z",
    "title_canon_sha256": "fe075bc29796ac74b2f196b4b9935270551f0de720100c2f8cd91828491d5221"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.08814",
    "kind": "arxiv",
    "version": 1
  }
}