Pith Number

pith:FW33JLLI

pith:2019:FW33JLLINUEO55WVT6CAVFUIJE

not attested not anchored not stored refs pending

Josephson junctions and SQUIDs created by focused helium ion beam irradiation of YBa$_2$Cu$_3$O$_7$

B. M\"uller, B. Schr\"oppel, C. J. Burkhardt, D. Koelle, E. Goldobin, F. Limberger, M. Becker, M. Karrer, R. Kleiner

arxiv:1901.08039 v3 · 2019-01-23 · 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{FW33JLLINUEO55WVT6CAVFUIJE}

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	2026-05-17T23:47:35.801257Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2db7b4ad686d08eef6d59f840a9688490ce761f8ccc23bafc3a406b560b7033e

Aliases

arxiv: 1901.08039 · arxiv_version: 1901.08039v3 · doi: 10.48550/arxiv.1901.08039 · pith_short_12: FW33JLLINUEO · pith_short_16: FW33JLLINUEO55WV · pith_short_8: FW33JLLI

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/FW33JLLINUEO55WVT6CAVFUIJE \
  | 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: 2db7b4ad686d08eef6d59f840a9688490ce761f8ccc23bafc3a406b560b7033e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8337a4e6f3294efdad6e30544e7bfd3279f17a67fd651aedaeeb2b4c9523179a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2019-01-23T18:41:18Z",
    "title_canon_sha256": "8a27ccd81f4f97771b19546f77784ca25ee6aa80fa27fbecce47ad88063f2fef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.08039",
    "kind": "arxiv",
    "version": 3
  }
}