Pith Number

pith:E654FSFO

pith:2015:E654FSFOAKY4DGL454SX24E4MM

not attested not anchored not stored refs pending

The Hubbard Dimer: A density functional case study of a many-body problem

Diego Carrascal, Jaime Ferrer, Justin C. Smith, Kieron Burke

arxiv:1502.02194 v1 · 2015-02-07 · cond-mat.str-el · physics.chem-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{E654FSFOAKY4DGL454SX24E4MM}

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	2026-05-18T01:31:45.694577Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

27bbc2c8ae02b1c1997cef257d709c6336588e1f484ef428dc39d7f67cff4ae1

Aliases

arxiv: 1502.02194 · arxiv_version: 1502.02194v1 · doi: 10.48550/arxiv.1502.02194 · pith_short_12: E654FSFOAKY4 · pith_short_16: E654FSFOAKY4DGL4 · pith_short_8: E654FSFO

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/E654FSFOAKY4DGL454SX24E4MM \
  | 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: 27bbc2c8ae02b1c1997cef257d709c6336588e1f484ef428dc39d7f67cff4ae1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "88d1bb3701a21827904dc27444fd247677911181b5a4a7aa6c5756d827a36eba",
    "cross_cats_sorted": [
      "physics.chem-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.str-el",
    "submitted_at": "2015-02-07T23:39:52Z",
    "title_canon_sha256": "05b55554bf58ebedc730a401e8b677046990f3f1731e71e70957b851f4cebc66"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.02194",
    "kind": "arxiv",
    "version": 1
  }
}