Pith Number

pith:5VVIJPAS

pith:1998:5VVIJPASUUWFCL2J5VKJO76MGM

not attested not anchored not stored refs pending

The velocity and angular momentum of a free Dirac electron

Lu Lin

arxiv:physics/9804024 v1 · 1998-04-22 · 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{5VVIJPASUUWFCL2J5VKJO76MGM}

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	2026-07-04T14:44:54.732572Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed6a84bc12a52c512f49ed54977fcc3305b65935d3e59b3821235c95b0ae2485

Aliases

arxiv: physics/9804024 · arxiv_version: physics/9804024v1 · doi: 10.48550/arxiv.physics/9804024 · pith_short_12: 5VVIJPASUUWF · pith_short_16: 5VVIJPASUUWFCL2J · pith_short_8: 5VVIJPAS

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/5VVIJPASUUWFCL2J5VKJO76MGM \
  | 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: ed6a84bc12a52c512f49ed54977fcc3305b65935d3e59b3821235c95b0ae2485

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "18e81430bd54532fb63f5a3143c5ae203065a62f7974296414bcab0b56f9f3a0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "1998-04-22T09:46:35Z",
    "title_canon_sha256": "a5fe75ea60ba67a2982116e991f3d1b68e476b8d13ca2b52bb3aa2f0eda57db3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/9804024",
    "kind": "arxiv",
    "version": 1
  }
}