Pith Number

pith:SR4GFJR6

pith:2015:SR4GFJR623EMBBZC2WMUMABECF

not attested not anchored not stored refs pending

Equation of state of the two-dimensional Hubbard model

Daniel Pertot, Eugenio Cocchi, Ferdinand Brennecke, Jan H. Drewes, Luke A. Miller, Marco Koschorreck, Michael K\"ohl

arxiv:1512.03431 v1 · 2015-12-10 · 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{SR4GFJR623EMBBZC2WMUMABECF}

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	2026-05-18T01:15:43.573745Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

947862a63ed6c8c08722d59946002411596387a3ccbd3c063ddcefceba8b3551

Aliases

arxiv: 1512.03431 · arxiv_version: 1512.03431v1 · doi: 10.48550/arxiv.1512.03431 · pith_short_12: SR4GFJR623EM · pith_short_16: SR4GFJR623EMBBZC · pith_short_8: SR4GFJR6

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/SR4GFJR623EMBBZC2WMUMABECF \
  | 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: 947862a63ed6c8c08722d59946002411596387a3ccbd3c063ddcefceba8b3551

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5628dfa56bc651c176ba66f79082a171f0f9154bdc2d669269752d4041939baf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.quant-gas",
    "submitted_at": "2015-12-10T21:00:04Z",
    "title_canon_sha256": "cc64aabd1c78b3c604e6a91df1bf729bf4cecfced36075f0d0a32b25518f5f3d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.03431",
    "kind": "arxiv",
    "version": 1
  }
}