Pith Number

pith:3SIN73UQ

pith:2014:3SIN73UQ4JPV5W6HMWPFXD42OV

not attested not anchored not stored refs pending

Split-Quaternions and the Dirac Equation

Francesco Antonuccio

arxiv:1405.0187 v4 · 2014-04-25 · physics.gen-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{3SIN73UQ4JPV5W6HMWPFXD42OV}

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	2026-05-18T02:26:39.119783Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dc90dfee90e25f5edbc7659e5b8f9a754d5068aa367e48ccaa6485b6eaa87694

Aliases

arxiv: 1405.0187 · arxiv_version: 1405.0187v4 · doi: 10.48550/arxiv.1405.0187 · pith_short_12: 3SIN73UQ4JPV · pith_short_16: 3SIN73UQ4JPV5W6H · pith_short_8: 3SIN73UQ

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/3SIN73UQ4JPV5W6HMWPFXD42OV \
  | 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: dc90dfee90e25f5edbc7659e5b8f9a754d5068aa367e48ccaa6485b6eaa87694

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "955110df3d9ae392c0e1ae50629ddc36dd20fe70a1fe0912321e3ad83a2d7a43",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "2014-04-25T09:07:39Z",
    "title_canon_sha256": "791036920c1e5c7160c67b13800c4b431b4d2634b7e6ff302f0f19d503737dac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.0187",
    "kind": "arxiv",
    "version": 4
  }
}