Pith Number

pith:OO3O4ZIY

pith:2002:OO3O4ZIYNQZNVECHBGOPSPQ5RF

not attested not anchored not stored refs pending

Superconductivity in the Infinite Layer Compound CaCuO2

C.W.Chu, K.A.Muller

arxiv:cond-mat/0203457 v1 · 2002-03-22 · cond-mat.supr-con

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OO3O4ZIYNQZNVECHBGOPSPQ5RF}

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	2026-07-04T14:19:02.308141Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

73b6ee65186c32da9047099cf93e1d8974a2764743b98a230061beeed2bd7d34

Aliases

arxiv: cond-mat/0203457 · arxiv_version: cond-mat/0203457v1 · doi: 10.48550/arxiv.cond-mat/0203457 · pith_short_12: OO3O4ZIYNQZN · pith_short_16: OO3O4ZIYNQZNVECH · pith_short_8: OO3O4ZIY

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/OO3O4ZIYNQZNVECHBGOPSPQ5RF \
  | 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: 73b6ee65186c32da9047099cf93e1d8974a2764743b98a230061beeed2bd7d34

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "70069fad1a83fc20b0bbb8b6b5f415ee6572161eaa1d7e5f960eb6cea008962d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2002-03-22T11:41:27Z",
    "title_canon_sha256": "08672e1516d9218d83ae35bdd8cbf4da5a2bd98a32fdb98bbfe156b0e015fa16"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cond-mat/0203457",
    "kind": "arxiv",
    "version": 1
  }
}