Pith Number

pith:PCLKL6BI

pith:1999:PCLKL6BI5L2SII2ZQ4FH3A7DVV

not attested not anchored not stored refs pending

Stability of Neutrino Mass Degeneracy

Ernest Ma (UC Riverside)

arxiv:hep-ph/9907400 v2 · 1999-07-16 · 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{PCLKL6BI5L2SII2ZQ4FH3A7DVV}

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	2026-05-18T01:38:55.918907Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7896a5f828eaf5242359870a7d83e3ad53bed9acb4aed87867bc624f2765a847

Aliases

arxiv: hep-ph/9907400 · arxiv_version: hep-ph/9907400v2 · doi: 10.48550/arxiv.hep-ph/9907400 · pith_short_12: PCLKL6BI5L2S · pith_short_16: PCLKL6BI5L2SII2Z · pith_short_8: PCLKL6BI

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/PCLKL6BI5L2SII2ZQ4FH3A7DVV \
  | 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: 7896a5f828eaf5242359870a7d83e3ad53bed9acb4aed87867bc624f2765a847

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4bb148be12fc785417aca0f5751a7d44ed957be93a7fcbbabb4e894cbc3b7e8b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-ph",
    "submitted_at": "1999-07-16T19:18:56Z",
    "title_canon_sha256": "f2b8e3077793c690492e7c24aab9f0f7f24acb2aa2992d38ef43a38ee3b0ee47"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-ph/9907400",
    "kind": "arxiv",
    "version": 2
  }
}