Pith Number

pith:C5DQVSAV

pith:2008:C5DQVSAVILMLRB2BQVEF4OPRHN

not attested not anchored not stored refs pending

Energy gaps in the failed high-Tc superconductor La1.875Ba0.125CuO4

Kazuyoshi Yamada, Kiyohisa Tanaka, Masaki Fujita, Norman Mannella, Rui-Hua He, Sung-Kwan Mo, Tadashi Adachi, Takao Sasagawa, Yoji Koike, Zahid Hussain, Zhi-Xun Shen

arxiv:0812.3882 v1 · 2008-12-19 · 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{C5DQVSAVILMLRB2BQVEF4OPRHN}

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	2026-05-18T04:26:54.191565Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

17470ac81542d8b8874185485e39f13b5b0dfd43cc3fcfb576b52a5a4cac6e62

Aliases

arxiv: 0812.3882 · arxiv_version: 0812.3882v1 · doi: 10.48550/arxiv.0812.3882 · pith_short_12: C5DQVSAVILML · pith_short_16: C5DQVSAVILMLRB2B · pith_short_8: C5DQVSAV

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/C5DQVSAVILMLRB2BQVEF4OPRHN \
  | 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: 17470ac81542d8b8874185485e39f13b5b0dfd43cc3fcfb576b52a5a4cac6e62

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b5379356bba888622fadad05d0741407bbf7618a02aafd54c459ac24b89164e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2008-12-19T18:57:30Z",
    "title_canon_sha256": "d4ff0a3f391716bf0322710df87398a8e2eb0da023d3cbd619586a96f0372683"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0812.3882",
    "kind": "arxiv",
    "version": 1
  }
}