Pith Number

pith:W3472NEX

pith:2017:W3472NEXN47GNYKVJQ3JJ4LAN3

not attested not anchored not stored refs pending

Muon Radiation Dose and Marine Megafaunal Extinction at the end-Pliocene Supernova

Adrian L. Melott (Kansas), Franciole Marinho, Laura Paulucci

arxiv:1712.09367 v2 · 2017-12-26 · astro-ph.EP · astro-ph.HE · astro-ph.SR · physics.ao-ph · q-bio.PE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W3472NEXN47GNYKVJQ3JJ4LAN3}

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	2026-05-17T23:42:49.087418Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6f9fd34976f3e66e1554c3694f1606edbc1bcf31af28d61707f045d1baf8caf

Aliases

arxiv: 1712.09367 · arxiv_version: 1712.09367v2 · doi: 10.48550/arxiv.1712.09367 · pith_short_12: W3472NEXN47G · pith_short_16: W3472NEXN47GNYKV · pith_short_8: W3472NEX

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/W3472NEXN47GNYKVJQ3JJ4LAN3 \
  | 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: b6f9fd34976f3e66e1554c3694f1606edbc1bcf31af28d61707f045d1baf8caf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0ef0d6da645cf0ed5f0e9eba317ba8556ed9591537be4290ecf2070fb6cea5d",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "astro-ph.SR",
      "physics.ao-ph",
      "q-bio.PE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2017-12-26T19:00:11Z",
    "title_canon_sha256": "fe85e2c94354058b0c91003ef0c607f66d006ddc57601fc73626c997e0fd72b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.09367",
    "kind": "arxiv",
    "version": 2
  }
}