Pith Number

pith:376GO5RD

pith:2025:376GO5RDQLL3653ULBT4PJE3CX

not attested not anchored not stored refs pending

Identification and optimization of accurate spin models for Fermi-Hubbard ladders using matrix product states

Andoni Agirre, Geza Giedke, Thomas Frederiksen, Tobias Grass

arxiv:2512.18695 v2 · 2025-12-21 · cond-mat.mes-hall · cond-mat.str-el · 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{376GO5RDQLL3653ULBT4PJE3CX}

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	2026-06-29T01:14:27.118875Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dffc67762382d7bf77745867c7a49b15f2fa98f2625ada4c602da035f0b1ae91

Aliases

arxiv: 2512.18695 · arxiv_version: 2512.18695v2 · doi: 10.48550/arxiv.2512.18695 · pith_short_12: 376GO5RDQLL3 · pith_short_16: 376GO5RDQLL3653U · pith_short_8: 376GO5RD

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/376GO5RDQLL3653ULBT4PJE3CX \
  | 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: dffc67762382d7bf77745867c7a49b15f2fa98f2625ada4c602da035f0b1ae91

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9d3e99eaa643582abd536cfa35c5a9ddcc6d0cc741dfba1a96cce59d29ec36f",
    "cross_cats_sorted": [
      "cond-mat.str-el",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2025-12-21T11:16:10Z",
    "title_canon_sha256": "c1dd73d4f089a5c4e579dc380ec6f9ff36599cd48bc4b6cc525e2c671ce11c00"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2512.18695",
    "kind": "arxiv",
    "version": 2
  }
}