Pith Number

pith:MB4CKKKW

pith:2025:MB4CKKKW64OCKBDGN6646L4DMQ

not attested not anchored not stored refs pending

Quantum Logic Spectroscopy of an Electron and Positron for Precise Tests of the Standard Model

Atsushi Noguchi, Kento Taniguchi, Xing Fan

arxiv:2502.14157 v3 · 2025-02-19 · quant-ph · hep-ex · physics.atom-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{MB4CKKKW64OCKBDGN6646L4DMQ}

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	2026-07-05T11:15:19.553177Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6078252956f71c2504666fbdcf2f8364297ada40a756b9e595c08133788a76b7

Aliases

arxiv: 2502.14157 · arxiv_version: 2502.14157v3 · doi: 10.48550/arxiv.2502.14157 · pith_short_12: MB4CKKKW64OC · pith_short_16: MB4CKKKW64OCKBDG · pith_short_8: MB4CKKKW

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/MB4CKKKW64OCKBDGN6646L4DMQ \
  | 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: 6078252956f71c2504666fbdcf2f8364297ada40a756b9e595c08133788a76b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "39435f123a424cacc79dca31c0a1ec8af6e0c355d8553551958439349a815940",
    "cross_cats_sorted": [
      "hep-ex",
      "physics.atom-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-02-19T23:53:38Z",
    "title_canon_sha256": "a27ed63cb5926def08e34460cbe0e93d97e05d44c09ef98b3cbefe4ac20fa89d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.14157",
    "kind": "arxiv",
    "version": 3
  }
}