Pith Number

pith:PE4YPPKA

pith:1999:PE4YPPKAS2L4TH7MMEIAVEN3QQ

not attested not anchored not stored refs pending

Unstable Heavy Majorana Neutrinos and Leptogenesis

G.Mangano, G. Miele

arxiv:hep-ph/9912471 v2 · 1999-12-22 · hep-ph · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PE4YPPKAS2L4TH7MMEIAVEN3QQ}

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	2026-05-18T02:36:21.428077Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

793987bd409697c99fec61100a91bb84392d6f3488ea217e3fc80bd58bc6b118

Aliases

arxiv: hep-ph/9912471 · arxiv_version: hep-ph/9912471v2 · doi: 10.48550/arxiv.hep-ph/9912471 · pith_short_12: PE4YPPKAS2L4 · pith_short_16: PE4YPPKAS2L4TH7M · pith_short_8: PE4YPPKA

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/PE4YPPKAS2L4TH7MMEIAVEN3QQ \
  | 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: 793987bd409697c99fec61100a91bb84392d6f3488ea217e3fc80bd58bc6b118

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "01d09362492a0c9d38e60fdef78343ac3399da3ae1f061285e2af94b1ebfcfa4",
    "cross_cats_sorted": [
      "astro-ph"
    ],
    "license": "",
    "primary_cat": "hep-ph",
    "submitted_at": "1999-12-22T16:16:59Z",
    "title_canon_sha256": "df4ebbc0da4c8ca3da4056c0400c86441b6883a660c18cf02a5751c910f6af5a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-ph/9912471",
    "kind": "arxiv",
    "version": 2
  }
}