Pith Number

pith:4SLDL4W4

pith:2002:4SLDL4W4EUJF4WCUK5YVMPN5RN

not attested not anchored not stored refs pending

Carbon solubility and superconductivity in MgB2

A. Bharathi, G.L.N. Reddy, S.Jemima Balaselvi, S. Kalavathi, T.S. Radhakrishnan, V. Sankara Sastry, Y.Hariharan

arxiv:cond-mat/0202031 v1 · 2002-02-02 · 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{4SLDL4W4EUJF4WCUK5YVMPN5RN}

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	2026-05-18T01:40:04.089572Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e49635f2dc25125e58545771563dbd8b69f150f1a0f5cd56c4481030dc7770d7

Aliases

arxiv: cond-mat/0202031 · arxiv_version: cond-mat/0202031v1 · doi: 10.48550/arxiv.cond-mat/0202031 · pith_short_12: 4SLDL4W4EUJF · pith_short_16: 4SLDL4W4EUJF4WCU · pith_short_8: 4SLDL4W4

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/4SLDL4W4EUJF4WCUK5YVMPN5RN \
  | 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: e49635f2dc25125e58545771563dbd8b69f150f1a0f5cd56c4481030dc7770d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd6beebd24c5435b2dc0b6a34f4d5ef26909e22c591002a0b38dcabd303f2c98",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2002-02-02T05:46:39Z",
    "title_canon_sha256": "62889c4b5ec61be512f247caabba50d87a96d5717d12e4a4f2d98471548b9027"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cond-mat/0202031",
    "kind": "arxiv",
    "version": 1
  }
}