Pith Number

pith:ECNAFM2X

pith:2014:ECNAFM2XNEYY5TSJIIWDPYGEWR

not attested not anchored not stored refs pending

Superconducting cascade electron refrigerator

Angelo Di Marco (LPMMC), Clemens Winkelmann (NEEL), Francesco Giazotto, Frank W. J. Hekking (LPMMC), Herv\'e Courtois (NEEL), Maria Camarasa-Gomez

arxiv:1404.4701 v1 · 2014-04-18 · 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{ECNAFM2XNEYY5TSJIIWDPYGEWR}

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	2026-05-18T01:43:28.615752Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

209a02b35769318ece49422c37e0c4b4601eae0825202ea514624f971251be8f

Aliases

arxiv: 1404.4701 · arxiv_version: 1404.4701v1 · doi: 10.48550/arxiv.1404.4701 · pith_short_12: ECNAFM2XNEYY · pith_short_16: ECNAFM2XNEYY5TSJ · pith_short_8: ECNAFM2X

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/ECNAFM2XNEYY5TSJIIWDPYGEWR \
  | 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: 209a02b35769318ece49422c37e0c4b4601eae0825202ea514624f971251be8f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb59e57dff9aaf84a140b55696644e0cf2386c0750eec3f764326ab280640513",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2014-04-18T06:37:46Z",
    "title_canon_sha256": "fb3e8fe95801d926d926961084fa329f9d0faea048da4aa8b0b6a8e12217f671"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.4701",
    "kind": "arxiv",
    "version": 1
  }
}