Pith Number

pith:PTY5SOHL

pith:2004:PTY5SOHL57GWFF3OWAZNXQOU3Y

not attested not anchored not stored refs pending

Proton incorporations and superconductivity in a cobalt oxyhydrate

Chunmu Feng, Guanghan Cao, Ming Zhong, Xiaoming Tang, Xuezhi Chen, Yi Xu, Zhu'an Xu

arxiv:cond-mat/0402638 v1 · 2004-02-26 · cond-mat.supr-con · 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{PTY5SOHL57GWFF3OWAZNXQOU3Y}

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	2026-07-04T16:45:50.779362Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7cf1d938ebefcd62976eb032dbc1d4de1105c487ba3b3240fa084546b2edc1da

Aliases

arxiv: cond-mat/0402638 · arxiv_version: cond-mat/0402638v1 · doi: 10.48550/arxiv.cond-mat/0402638 · pith_short_12: PTY5SOHL57GW · pith_short_16: PTY5SOHL57GWFF3O · pith_short_8: PTY5SOHL

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/PTY5SOHL57GWFF3OWAZNXQOU3Y \
  | 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: 7cf1d938ebefcd62976eb032dbc1d4de1105c487ba3b3240fa084546b2edc1da

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "555bd54f16122c3f5f7fd2d784a1b5c924c5e94a062cfce9cf71b934fde0bf14",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci"
    ],
    "license": "",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2004-02-26T04:26:59Z",
    "title_canon_sha256": "fd19ae54a0947aded651d860c5642ff3a1454747d8f5190195569977e62ec3fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cond-mat/0402638",
    "kind": "arxiv",
    "version": 1
  }
}