Pith Number

pith:4M32UQTI

pith:2016:4M32UQTIXW424XB3CEKFBPYR77

not attested not anchored not stored refs pending

Hubbard models with nearly flat bands: Ground-state ferromagnetism driven by kinetic energy

Johannes Richter, Oleg Derzhko, Patrick M\"uller

arxiv:1602.00439 v1 · 2016-02-01 · cond-mat.str-el

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4M32UQTIXW424XB3CEKFBPYR77}

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	2026-05-18T01:15:57.613653Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e337aa4268bdb9ae5c3b111450bf11ffc8bc25616c5c7fea3c444344a3e2bf49

Aliases

arxiv: 1602.00439 · arxiv_version: 1602.00439v1 · doi: 10.48550/arxiv.1602.00439 · pith_short_12: 4M32UQTIXW42 · pith_short_16: 4M32UQTIXW424XB3 · pith_short_8: 4M32UQTI

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/4M32UQTIXW424XB3CEKFBPYR77 \
  | 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: e337aa4268bdb9ae5c3b111450bf11ffc8bc25616c5c7fea3c444344a3e2bf49

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2521e0e59558058e4ea78f6e6502ec0c1f7fdbf4987accb3fc69ebcbb098d159",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.str-el",
    "submitted_at": "2016-02-01T09:26:20Z",
    "title_canon_sha256": "37a705bdf053ec54ac00b1cf8f4f21fa6426a9852ef632ba89a2958fde466b62"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.00439",
    "kind": "arxiv",
    "version": 1
  }
}