Pith Number

pith:EUGEWEQE

pith:2025:EUGEWEQEM5MGDA3IDTUH3SPY54

not attested not anchored not stored refs pending

The trace distance between density matrices, a nifty tool in new-physics searches

Luca Marzola, Marco Fabbrichesi, Matthew Low

arxiv:2501.03311 v2 · 2025-01-06 · hep-ph · hep-ex · quant-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{EUGEWEQEM5MGDA3IDTUH3SPY54}

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

4 papers in Pith

Tripartite Entanglement in $e^+ e^- \to t \bar{t} Z$

Entanglement and Bell Nonlocality in $\tau^+ \tau^-$ at the LHC using Machine Learning for Neutrino Reconstruction

Automated computation of spin-density matrices and quantum observables for collider physics

Spin Correlation and Quantum Entanglement of Fermion Pairs in Transversely Polarized $e^-e^+$ Collisions

Receipt and verification

First computed	2026-07-05T11:33:19.141867Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

250c4b120467586183681ce87dc9f8ef32f9e8af2f8961ba74920cf5a72c88e9

Aliases

arxiv: 2501.03311 · arxiv_version: 2501.03311v2 · doi: 10.48550/arxiv.2501.03311 · pith_short_12: EUGEWEQEM5MG · pith_short_16: EUGEWEQEM5MGDA3I · pith_short_8: EUGEWEQE

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/EUGEWEQEM5MGDA3IDTUH3SPY54 \
  | 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: 250c4b120467586183681ce87dc9f8ef32f9e8af2f8961ba74920cf5a72c88e9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ea6d0af37f8a6ab060143a14dbfc01443fbcd3be0316ccf371be9af1c46322f",
    "cross_cats_sorted": [
      "hep-ex",
      "quant-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2025-01-06T19:00:00Z",
    "title_canon_sha256": "e8cf63da00511f23b2c91e5746c3f2dff56e3d90254872989adf50943fce3f72"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.03311",
    "kind": "arxiv",
    "version": 2
  }
}