Pith Number

pith:3O3BOVFB

pith:1995:3O3BOVFBPNBEJDXOH3SYZ2AADJ

not attested not anchored not stored refs pending

A Covariant Method for Calculating Helicity Amplitudes

Dallas, J. Wudka (Univeristy of California at Riverside), R. Vega (Southern Methodist University, TX)

arxiv:hep-ph/9511318 v1 · 1995-11-15 · 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{3O3BOVFBPNBEJDXOH3SYZ2AADJ}

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	2026-05-18T02:37:12.320393Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dbb61754a17b42448eee3ee58ce8001a5148748301b6bce3c429530d5ae84c3e

Aliases

arxiv: hep-ph/9511318 · arxiv_version: hep-ph/9511318v1 · doi: 10.48550/arxiv.hep-ph/9511318 · pith_short_12: 3O3BOVFBPNBE · pith_short_16: 3O3BOVFBPNBEJDXO · pith_short_8: 3O3BOVFB

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/3O3BOVFBPNBEJDXOH3SYZ2AADJ \
  | 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: dbb61754a17b42448eee3ee58ce8001a5148748301b6bce3c429530d5ae84c3e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3fddd81d5aa4feb18f3223d75265a0fb6e6cf942a354b7127a37c337ebb70817",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-ph",
    "submitted_at": "1995-11-15T01:00:02Z",
    "title_canon_sha256": "fa6f4c95e85c286b08bbc89a6385e8acd06e75867a2f70ac8cc07b2a282d4c24"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-ph/9511318",
    "kind": "arxiv",
    "version": 1
  }
}