Pith Number

pith:MR5QGRUS

pith:2007:MR5QGRUSKKVDRILHS37XJ5GRA6

not attested not anchored not stored refs pending

Strong electron-phonon coupling in the rare-earth carbide superconductor La2C3

A. Simon, B. Ouladdiaf, B. Raquet, H. Rakoto, J.-M. Broto, J. S. Kim, K. S. Ahn, O. Jepsen, R. K. Kremer, V. Babizhetskyy, W.-H. Xie

arxiv:cond-mat/0703279 v1 · 2007-03-11 · 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{MR5QGRUSKKVDRILHS37XJ5GRA6}

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	2026-07-04T17:08:05.771778Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

647b03469252aa38a16796ff74f4d107a0e96fcd66a9b56d07e3f496b0777cbe

Aliases

arxiv: cond-mat/0703279 · arxiv_version: cond-mat/0703279v1 · doi: 10.48550/arxiv.cond-mat/0703279 · pith_short_12: MR5QGRUSKKVD · pith_short_16: MR5QGRUSKKVDRILH · pith_short_8: MR5QGRUS

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/MR5QGRUSKKVDRILHS37XJ5GRA6 \
  | 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: 647b03469252aa38a16796ff74f4d107a0e96fcd66a9b56d07e3f496b0777cbe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5bed02f8c55cc50b6e030f645c5c947066e89f9ad15126d4d0b49d56c0565460",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci"
    ],
    "license": "",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2007-03-11T21:34:14Z",
    "title_canon_sha256": "fb5844e6a6bc4d8ee7e5b0e37ea80aa9fc8b93abb1412ac32e64f5b75ccd370b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cond-mat/0703279",
    "kind": "arxiv",
    "version": 1
  }
}