Pith Number

pith:MGPUEH4B

pith:2011:MGPUEH4BOJPVO6X5KJFYJUU4HW

not attested not anchored not stored refs pending

Analytical approach to the two-site Bose-Hubbard model: from Fock states to Schr\"odinger cat states and entanglement entropy

Luca Dell'Anna

arxiv:1108.6188 v3 · 2011-08-31 · cond-mat.quant-gas · 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{MGPUEH4BOJPVO6X5KJFYJUU4HW}

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	2026-05-18T03:54:37.537897Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

619f421f81725f577afd524b84d29c3d9abe23be3d10c1fa285c5578c12d00da

Aliases

arxiv: 1108.6188 · arxiv_version: 1108.6188v3 · doi: 10.48550/arxiv.1108.6188 · pith_short_12: MGPUEH4BOJPV · pith_short_16: MGPUEH4BOJPVO6X5 · pith_short_8: MGPUEH4B

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/MGPUEH4BOJPVO6X5KJFYJUU4HW \
  | 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: 619f421f81725f577afd524b84d29c3d9abe23be3d10c1fa285c5578c12d00da

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77611e3b8aa51bbafd44004750c7599b179a1c8c1c7a8b40d93fc495bc468983",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.quant-gas",
    "submitted_at": "2011-08-31T11:02:31Z",
    "title_canon_sha256": "5c1a5e41019481551d6ac92ec61b3dcc7d986665313ada5e5cb70648d915ad74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.6188",
    "kind": "arxiv",
    "version": 3
  }
}