Pith Number

pith:HEXJEEJZ

pith:2025:HEXJEEJZBPHVPQM3QRCHLSWCYR

not attested not anchored not stored refs pending

Spin precession and neutrino helicity flip in various spacetimes

Fay\c{c}al Hammad, Mathieu Simard, Nicolas Fleury, Reza Saadati, Santiago Novoa-Cattivelli

arxiv:2502.15593 v2 · 2025-02-21 · hep-ph · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HEXJEEJZBPHVPQM3QRCHLSWCYR}

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	2026-07-05T10:43:04.855950Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

392e9211390bcf57c19b844475cac2c4766b93e2096ef19c965e412e1746136b

Aliases

arxiv: 2502.15593 · arxiv_version: 2502.15593v2 · doi: 10.48550/arxiv.2502.15593 · pith_short_12: HEXJEEJZBPHV · pith_short_16: HEXJEEJZBPHVPQM3 · pith_short_8: HEXJEEJZ

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/HEXJEEJZBPHVPQM3QRCHLSWCYR \
  | 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: 392e9211390bcf57c19b844475cac2c4766b93e2096ef19c965e412e1746136b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8dbbe053d0ff41dc23197192d19e0533b24b8e4b8e46ae360de460429e1c9b3a",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2025-02-21T17:10:15Z",
    "title_canon_sha256": "40849fabfe53c0336a5995cbcb049318d93c67bbaa2a894cf3186d4bf22797b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.15593",
    "kind": "arxiv",
    "version": 2
  }
}