Pith Number

pith:H2PJIU2Q

pith:2000:H2PJIU2QPQAF6BQTYCNXC4FQZ3

not attested not anchored not stored refs pending

Devonshire-Landau free energy of BaTiO3 from first principles

Alberto Garcia (Laboratorio de Materiales, Bilbao), J. M. Perez-Mato, Jorge Iniguez, S. Ivantchev, Universidad del Pais Vasco

arxiv:cond-mat/0009430 v1 · 2000-09-27 · cond-mat.mtrl-sci

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H2PJIU2QPQAF6BQTYCNXC4FQZ3}

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	2026-05-18T03:36:56.945197Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3e9e9453507c005f0613c09b7170b0ceefeb539dece01643918f659451c42dcd

Aliases

arxiv: cond-mat/0009430 · arxiv_version: cond-mat/0009430v1 · doi: 10.48550/arxiv.cond-mat/0009430 · pith_short_12: H2PJIU2QPQAF · pith_short_16: H2PJIU2QPQAF6BQT · pith_short_8: H2PJIU2Q

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/H2PJIU2QPQAF6BQTYCNXC4FQZ3 \
  | 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: 3e9e9453507c005f0613c09b7170b0ceefeb539dece01643918f659451c42dcd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "88953b6e2a2f1a527f62692af4bf3d5eb2f0866a2a3a387989f78c6fe36051c1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2000-09-27T17:54:11Z",
    "title_canon_sha256": "fef8ba9c83646fb97ad0a76174ca26cdedf8a6f3be07a262304c2c107eda39c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cond-mat/0009430",
    "kind": "arxiv",
    "version": 1
  }
}