Pith Number

pith:LPAFHGE3

pith:2017:LPAFHGE3ONU3ZCO44TICLQCH4R

not attested not anchored not stored refs pending

Ultrahigh energy cosmic ray nuclei from remnants of dead quasars

Juan J. Guerra, Luis A. Anchordoqui, Matthew J. O'Dowd, Rafael A. Colon, Roberto J. Moncada

arxiv:1702.00053 v2 · 2017-01-31 · 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{LPAFHGE3ONU3ZCO44TICLQCH4R}

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	2026-05-18T00:47:26.221892Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5bc053989b7369bc89dce4d025c047e4770c0e360c65581b272a6fd5c5e02423

Aliases

arxiv: 1702.00053 · arxiv_version: 1702.00053v2 · doi: 10.48550/arxiv.1702.00053 · pith_short_12: LPAFHGE3ONU3 · pith_short_16: LPAFHGE3ONU3ZCO4 · pith_short_8: LPAFHGE3

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/LPAFHGE3ONU3ZCO44TICLQCH4R \
  | 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: 5bc053989b7369bc89dce4d025c047e4770c0e360c65581b272a6fd5c5e02423

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af261c256807c8b1b0ff7f336d729ef2d0ddd416834373c79b743937bbbf6a8f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2017-01-31T20:57:39Z",
    "title_canon_sha256": "7f99e2bcb8e1e8a3c021ee70907b595c2927caf232aea8bcafebd4268490800d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.00053",
    "kind": "arxiv",
    "version": 2
  }
}