Pith Number

pith:65K3MIMR

pith:2019:65K3MIMRH6VEL42V2ZJ43HPQAK

not attested not anchored not stored refs pending

Fabrication of Superconducting YBa2Cu4O8 Film via Coprecipitation

Hiroshi Hara, Hiroyuki Takeya, Ryo Matsumoto, Shintaro Adachi, Yoshihiko Takano, Yoshito Saito

arxiv:1904.03506 v1 · 2019-04-06 · 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{65K3MIMRH6VEL42V2ZJ43HPQAK}

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	2026-05-17T23:40:55.245406Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f755b621913faa45f355d653cd9df002826e53f541085fab109e4370c6664ab5

Aliases

arxiv: 1904.03506 · arxiv_version: 1904.03506v1 · doi: 10.48550/arxiv.1904.03506 · pith_short_12: 65K3MIMRH6VE · pith_short_16: 65K3MIMRH6VEL42V · pith_short_8: 65K3MIMR

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/65K3MIMRH6VEL42V2ZJ43HPQAK \
  | 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: f755b621913faa45f355d653cd9df002826e53f541085fab109e4370c6664ab5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b800528fa670ca540d8d0dd575c20c58e8f891adc32e7f74ca33584490e38100",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2019-04-06T18:00:50Z",
    "title_canon_sha256": "727d90c584d666d15ee0e6f6521be98089b0a1842d7b336a72e610be3be1ed5c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.03506",
    "kind": "arxiv",
    "version": 1
  }
}