Pith Number

pith:CPNFP77U

pith:2001:CPNFP77UPGIWBDTSSWFULUVPSU

not attested not anchored not stored refs pending

Epitaxial MgB2 superconducting thin films with a transition temperature of 39 Kelvin

C. U. Jung, Eun-Mi Choi, Hyeong-Jin Kim, Sung-Ik Lee, W. N. Kang

arxiv:cond-mat/0103179 v2 · 2001-03-08 · 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{CPNFP77UPGIWBDTSSWFULUVPSU}

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	2026-07-04T14:18:19.939027Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13da57fff47991608e72958b45d2af951652062980153b2abc91dc9a0828a9ae

Aliases

arxiv: cond-mat/0103179 · arxiv_version: cond-mat/0103179v2 · doi: 10.48550/arxiv.cond-mat/0103179 · pith_short_12: CPNFP77UPGIW · pith_short_16: CPNFP77UPGIWBDTS · pith_short_8: CPNFP77U

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/CPNFP77UPGIWBDTSSWFULUVPSU \
  | 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: 13da57fff47991608e72958b45d2af951652062980153b2abc91dc9a0828a9ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a9693cc2dcb216ff9a45d3a8333d25db7a4ebd3dfbfb70641eef5ec496e729bb",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2001-03-08T12:53:25Z",
    "title_canon_sha256": "bde1bc67f24a57e180c722aadf59750516112873b0b2b4af032ca7d7c840f532"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cond-mat/0103179",
    "kind": "arxiv",
    "version": 2
  }
}