Pith Number

pith:NTH6ZYS7

pith:2011:NTH6ZYS7VULEE2YEBSJJ6ODD63

not attested not anchored not stored refs pending

Neutrino Masses and a Fourth Generation of Fermions

Alexei Yu. Smirnov, Michael A. Schmidt

arxiv:1110.0874 v3 · 2011-10-05 · 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{NTH6ZYS7VULEE2YEBSJJ6ODD63}

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	2026-05-18T02:00:17.782688Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ccfece25fad16426b040c929f3863f6f0e5913c7691a20593dffd344a0c7779

Aliases

arxiv: 1110.0874 · arxiv_version: 1110.0874v3 · doi: 10.48550/arxiv.1110.0874 · pith_short_12: NTH6ZYS7VULE · pith_short_16: NTH6ZYS7VULEE2YE · pith_short_8: NTH6ZYS7

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/NTH6ZYS7VULEE2YEBSJJ6ODD63 \
  | 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: 6ccfece25fad16426b040c929f3863f6f0e5913c7691a20593dffd344a0c7779

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f09077a62ac875b387625af5138479f6bc0bd20fa7e81a2efa7bb46dcfc6209",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2011-10-05T00:33:05Z",
    "title_canon_sha256": "613a749c4db753c2a21b9914f3a7a5ff5b0e65809e98d325d88028a6133cfe3f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.0874",
    "kind": "arxiv",
    "version": 3
  }
}