Pith Number

pith:7S4KAPZC

pith:2019:7S4KAPZCTM4ZCBOI4YSJBO7GRD

not attested not anchored not stored refs pending

QED and Fundamental Symmetries in Positronium Decays

Steven D. Bass

arxiv:1902.01355 v2 · 2019-02-04 · hep-ph · nucl-ex · nucl-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7S4KAPZCTM4ZCBOI4YSJBO7GRD}

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.

Cited by

1 paper in Pith

Annihilation energy and decay time of an ortho-Positronium

Receipt and verification

First computed	2026-05-17T23:40:55.488753Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fcb8a03f229b399105c8e62490bbe688e169352bce48e8cbfc97d21affbb4f75

Aliases

arxiv: 1902.01355 · arxiv_version: 1902.01355v2 · doi: 10.48550/arxiv.1902.01355 · pith_short_12: 7S4KAPZCTM4Z · pith_short_16: 7S4KAPZCTM4ZCBOI · pith_short_8: 7S4KAPZC

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/7S4KAPZCTM4ZCBOI4YSJBO7GRD \
  | 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: fcb8a03f229b399105c8e62490bbe688e169352bce48e8cbfc97d21affbb4f75

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da8fb5b1e3f02626d2c14b6e6ccfa7c98a49a7ec2473923fe4428ef840c30b30",
    "cross_cats_sorted": [
      "nucl-ex",
      "nucl-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2019-02-04T18:19:20Z",
    "title_canon_sha256": "8c515222a3688b4bafebeaefdc4ecd694a6517e5d34db3f087762331cec46391"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.01355",
    "kind": "arxiv",
    "version": 2
  }
}