Pith Number

pith:6NI332VU

pith:2011:6NI332VUR2KRTOGSZJ3WJNIEFE

not attested not anchored not stored refs pending

Improved variational approach to the two-site Bose-Hubbard model

Artur Polls, Bruno Juli\'a-D\'iaz, Marina Mel\'e-Messeguer

arxiv:1108.4851 v1 · 2011-08-24 · cond-mat.quant-gas

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6NI332VUR2KRTOGSZJ3WJNIEFE}

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	2026-05-18T02:00:48.663117Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f351bdeab48e9519b8d2ca7764b5042901dc0595fd77ac72965ccfd260e14e56

Aliases

arxiv: 1108.4851 · arxiv_version: 1108.4851v1 · doi: 10.48550/arxiv.1108.4851 · pith_short_12: 6NI332VUR2KR · pith_short_16: 6NI332VUR2KRTOGS · pith_short_8: 6NI332VU

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/6NI332VUR2KRTOGSZJ3WJNIEFE \
  | 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: f351bdeab48e9519b8d2ca7764b5042901dc0595fd77ac72965ccfd260e14e56

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2fe1aa9beaa6362a33664acbd15e5951481aaed9063bc4d9a520c4d51d739ce6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.quant-gas",
    "submitted_at": "2011-08-24T14:36:40Z",
    "title_canon_sha256": "84ca8b03dc4945d817310dfb86603dff1166897a63506bffa7f19b0885a7841f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.4851",
    "kind": "arxiv",
    "version": 1
  }
}