Pith Number

pith:W2FS46UP

pith:2015:W2FS46UPH4VKLURRO6KZMRTNJV

not attested not anchored not stored refs pending

Superconductivity in the ferromagnetic semiconductor SmN

A. Engel, A.G. Moghaddam, B.J. Ruck, E.-M. Anton, F. Natali, H.J. Trodahl, M. Governale, S. Granville, S.V. Chong, S. V\'ezian, U. Z\"ulicke

arxiv:1505.03621 v2 · 2015-05-14 · 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{W2FS46UPH4VKLURRO6KZMRTNJV}

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	2026-05-18T01:11:13.520648Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b68b2e7a8f3f2aa5d231779596466d4d594180601b43fc56d8f1389a1e6726c1

Aliases

arxiv: 1505.03621 · arxiv_version: 1505.03621v2 · doi: 10.48550/arxiv.1505.03621 · pith_short_12: W2FS46UPH4VK · pith_short_16: W2FS46UPH4VKLURR · pith_short_8: W2FS46UP

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/W2FS46UPH4VKLURRO6KZMRTNJV \
  | 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: b68b2e7a8f3f2aa5d231779596466d4d594180601b43fc56d8f1389a1e6726c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "850bebde62df450302c60ddeb1f636ed5eafc90c070cd3cfa5fc3b0202bc6a9c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2015-05-14T04:52:13Z",
    "title_canon_sha256": "cc9bbb18cf2c0e4b53c413f07746a88bac733bf7f59245138bf439082ffac7fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.03621",
    "kind": "arxiv",
    "version": 2
  }
}