Pith Number

pith:UOGVN3NO

pith:2026:UOGVN3NOPY2CTP4OZCIEGE5JRZ

not attested not anchored not stored refs pending

Entanglement-entropy analysis of critical and topological quantum phases in a frustrated spin-1/2 Heisenberg ladder

Andrej Gendiar, Azadeh Ghannadan, Hana Vargov\'a, Jozef Genzor, Roman Kr\v{c}m\'ar

arxiv:2606.21242 v1 · 2026-06-19 · quant-ph · cond-mat.str-el

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UOGVN3NOPY2CTP4OZCIEGE5JRZ}

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	2026-06-23T01:12:34.506450Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a38d56edae7e3429bf8ec8904313a98e70fbe36e050f38a7748a9ef4e910ef78

Aliases

arxiv: 2606.21242 · arxiv_version: 2606.21242v1 · doi: 10.48550/arxiv.2606.21242 · pith_short_12: UOGVN3NOPY2C · pith_short_16: UOGVN3NOPY2CTP4O · pith_short_8: UOGVN3NO

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/UOGVN3NOPY2CTP4OZCIEGE5JRZ \
  | 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: a38d56edae7e3429bf8ec8904313a98e70fbe36e050f38a7748a9ef4e910ef78

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f44d75bdd5991d45b13de0c9e4b5c37674bf89959a4e7c9bc7dda4b4d6b8448",
    "cross_cats_sorted": [
      "cond-mat.str-el"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-06-19T09:09:32Z",
    "title_canon_sha256": "fc4980f5913bd36a29436710ee4463870d5060fa1d867613f5bb66c4e5a5c4a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.21242",
    "kind": "arxiv",
    "version": 1
  }
}