Pith Number

pith:DOJGP55L

pith:2017:DOJGP55LGO4I7WURUFSBAZUSZS

not attested not anchored not stored refs pending

Ultrahigh-energy cosmic rays from tidally-ignited white dwarfs

Joseph Silk, Rafael Alves Batista

arxiv:1702.06978 v4 · 2017-02-22 · astro-ph.HE · astro-ph.GA · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DOJGP55LGO4I7WURUFSBAZUSZS}

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	2026-05-18T00:30:45.786763Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1b9267f7ab33b88fda91a164106692cc867d111695000f0efac07b30ac6a3238

Aliases

arxiv: 1702.06978 · arxiv_version: 1702.06978v4 · doi: 10.48550/arxiv.1702.06978 · pith_short_12: DOJGP55LGO4I · pith_short_16: DOJGP55LGO4I7WUR · pith_short_8: DOJGP55L

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/DOJGP55LGO4I7WURUFSBAZUSZS \
  | 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: 1b9267f7ab33b88fda91a164106692cc867d111695000f0efac07b30ac6a3238

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "442783ada753fb878d1aa4377f67172a5dccccbea2424f9cc98c0b887fe08afb",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2017-02-22T19:32:16Z",
    "title_canon_sha256": "812f9bbc692426cd5e7fcc439174e02f25beded200019d4c1fce1b2623b39f7e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.06978",
    "kind": "arxiv",
    "version": 4
  }
}