Pith Number

pith:D7PSNW4E

pith:2016:D7PSNW4EJWT3I3H53UQW5X7LGD

not attested not anchored not stored refs pending

Ultrahigh Energy Cosmic Rays: A Galactic Origin?

David Eichler, Eyal Gavish, Noemie Globus, Rahul Kumar

arxiv:1604.05721 v1 · 2016-04-19 · 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{D7PSNW4EJWT3I3H53UQW5X7LGD}

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	2026-05-18T01:16:12.661923Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1fdf26db844da7b46cfddd216edfeb30c783a8eda416aa17429558cd17e42686

Aliases

arxiv: 1604.05721 · arxiv_version: 1604.05721v1 · doi: 10.48550/arxiv.1604.05721 · pith_short_12: D7PSNW4EJWT3 · pith_short_16: D7PSNW4EJWT3I3H5 · pith_short_8: D7PSNW4E

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/D7PSNW4EJWT3I3H53UQW5X7LGD \
  | 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: 1fdf26db844da7b46cfddd216edfeb30c783a8eda416aa17429558cd17e42686

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "150394b0f13a90a3b5c5d0446480fe75c9fd3b8507670432ec0dbd8c1e50efff",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2016-04-19T20:00:03Z",
    "title_canon_sha256": "c25f0c14d65692650d2f4a2f05177205323b33641bba6a8bd022d2ba804e0cd6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.05721",
    "kind": "arxiv",
    "version": 1
  }
}