Pith Number

pith:USOB2I3B

pith:2008:USOB2I3B6FPII6EI4EERCZQFEM

not attested not anchored not stored refs pending

Sommerfeld corrections to type-II and III leptogenesis

Alessandro Strumia

arxiv:0806.1630 v2 · 2008-06-10 · hep-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{USOB2I3B6FPII6EI4EERCZQFEM}

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	2026-07-04T15:34:08.796414Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a49c1d2361f15e847888e109116605230101fa12264a295a057c70c540dc95ff

Aliases

arxiv: 0806.1630 · arxiv_version: 0806.1630v2 · doi: 10.48550/arxiv.0806.1630 · pith_short_12: USOB2I3B6FPI · pith_short_16: USOB2I3B6FPII6EI · pith_short_8: USOB2I3B

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/USOB2I3B6FPII6EI4EERCZQFEM \
  | 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: a49c1d2361f15e847888e109116605230101fa12264a295a057c70c540dc95ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "08b7eacd9491d4eeb988fc668a74a4eef81271e1fbe524f84de7ef106d57fae2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2008-06-10T19:33:20Z",
    "title_canon_sha256": "5e2dcc2c1bc9cc2b0937faec50fa479e7efd836359de991ad263b115f428c2fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0806.1630",
    "kind": "arxiv",
    "version": 2
  }
}