Pith Number

pith:Z5QUX4NQ

pith:2017:Z5QUX4NQSDT57EB3S7ZCQPYKGF

not attested not anchored not stored refs pending

The energy spectrum of ultraheavy nuclei above 10$^{20}$ eV

Antonio Codino

arxiv:1707.02487 v1 · 2017-07-08 · 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{Z5QUX4NQSDT57EB3S7ZCQPYKGF}

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	2026-05-18T00:40:36.745536Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf614bf1b090e7df903b97f2283f0a31736791ee7a4cf59a976803f5fe446104

Aliases

arxiv: 1707.02487 · arxiv_version: 1707.02487v1 · doi: 10.48550/arxiv.1707.02487 · pith_short_12: Z5QUX4NQSDT5 · pith_short_16: Z5QUX4NQSDT57EB3 · pith_short_8: Z5QUX4NQ

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/Z5QUX4NQSDT57EB3S7ZCQPYKGF \
  | 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: cf614bf1b090e7df903b97f2283f0a31736791ee7a4cf59a976803f5fe446104

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "902b5e04eab2fe812c6077ada240aca17aa1f86da6f5c57729db4223998e231d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2017-07-08T20:00:39Z",
    "title_canon_sha256": "d1964692551b4a044e15eb867590606c96cc429a35fede75699c992e46545ef3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.02487",
    "kind": "arxiv",
    "version": 1
  }
}