Pith Number

pith:KRZSWD5P

pith:2025:KRZSWD5P5Y4QCEH7OFMSKFTO3S

not attested not anchored not stored refs pending

Exploring Entanglement Entropy for a Particle on a Torus with constant Metric and constant $U(1)$-Gauge Field

Gerald Kelnhofer, Helmuth Huffel

arxiv:2506.11292 v1 · 2025-06-12 · hep-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{KRZSWD5P5Y4QCEH7OFMSKFTO3S}

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	2026-07-05T11:21:02.133035Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

54732b0fafee390110ff715925166edca41d1a1cdc20d28b0c10ef26f02f395c

Aliases

arxiv: 2506.11292 · arxiv_version: 2506.11292v1 · doi: 10.48550/arxiv.2506.11292 · pith_short_12: KRZSWD5P5Y4Q · pith_short_16: KRZSWD5P5Y4QCEH7 · pith_short_8: KRZSWD5P

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/KRZSWD5P5Y4QCEH7OFMSKFTO3S \
  | 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: 54732b0fafee390110ff715925166edca41d1a1cdc20d28b0c10ef26f02f395c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0a841b04feefb170da781145174edacf17cda3364e613c60402a0b071da0215d",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2025-06-12T20:47:35Z",
    "title_canon_sha256": "f71a80020031168b9a955bc46008a6eb6204af9ca78e624bfe6951f94d04fde8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.11292",
    "kind": "arxiv",
    "version": 1
  }
}