Pith Number

pith:BWC52JLM

pith:2005:BWC52JLM5KLQZ23MC5HTXBDSAZ

not attested not anchored not stored refs pending

Superconductivity in Polycrystalline Diamond Thin Films

Hiroshi Kawarada, Hitoshi Umezawa, Isao Sakaguchi, Masanori Nagao, Masashi Tachiki, Tomohiro Takenouchi, Yoshihiko Takano

arxiv:cond-mat/0507476 v2 · 2005-07-20 · 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{BWC52JLM5KLQZ23MC5HTXBDSAZ}

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	2026-07-04T14:48:20.933221Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d85dd256cea970ceb6c174f3b84720678abdb9a7803e6004e781e5718ad1c13

Aliases

arxiv: cond-mat/0507476 · arxiv_version: cond-mat/0507476v2 · doi: 10.48550/arxiv.cond-mat/0507476 · pith_short_12: BWC52JLM5KLQ · pith_short_16: BWC52JLM5KLQZ23M · pith_short_8: BWC52JLM

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/BWC52JLM5KLQZ23MC5HTXBDSAZ \
  | 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: 0d85dd256cea970ceb6c174f3b84720678abdb9a7803e6004e781e5718ad1c13

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "65cd6343dace3dc57282301481a02b3a6bd26ef9cc8cb12f86e164adc97e104b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2005-07-20T12:17:01Z",
    "title_canon_sha256": "f3100de8d3da189309896957ff9cad4851f2d3c1a96ae0a497daa53e899b2e64"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cond-mat/0507476",
    "kind": "arxiv",
    "version": 2
  }
}