Pith Number

pith:LL3V62H7

pith:2021:LL3V62H73NFAHVEZX2JUJ7E7RG

not attested not anchored not stored refs pending

On the stability of the area law for the entanglement entropy of the Landau Hamiltonian

Paul Pfeiffer (FernUniversit\"at in Hagen)

arxiv:2102.07287 v2 · 2021-02-15 · math-ph · cond-mat.quant-gas · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LL3V62H73NFAHVEZX2JUJ7E7RG}

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	2026-07-05T02:38:53.810485Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5af75f68ffdb4a03d499be9344fc9f89b0562bdcda516f1655dc9bf56e4d5a95

Aliases

arxiv: 2102.07287 · arxiv_version: 2102.07287v2 · doi: 10.48550/arxiv.2102.07287 · pith_short_12: LL3V62H73NFA · pith_short_16: LL3V62H73NFAHVEZ · pith_short_8: LL3V62H7

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/LL3V62H73NFAHVEZX2JUJ7E7RG \
  | 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: 5af75f68ffdb4a03d499be9344fc9f89b0562bdcda516f1655dc9bf56e4d5a95

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9a5bdbc9c10b3921701fe5e7976b9b9438a2970afbf2b1c19d593e31ce771a17",
    "cross_cats_sorted": [
      "cond-mat.quant-gas",
      "math.MP"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2021-02-15T00:51:14Z",
    "title_canon_sha256": "2caa724c7f50f9bef72037e6ec01b961f72b25808be3c2d2aa0c259cb63156a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.07287",
    "kind": "arxiv",
    "version": 2
  }
}