Pith Number

pith:RRDX3GAC

pith:2015:RRDX3GAC47ZXGOJJUPXIAAORK7

not attested not anchored not stored refs pending

Superconductivity at 52 K in hydrogen-substituted LaFeAsO1-xHx under high pressure

Chizuru Kawashima, Hideo Hosono, Hideto Soeda, Hiroki Takahashi, Muga Nukii, Satoru Matsuishi, Soshi Iimura, Takeshi Nakanishi, Yoshinori Muraba

arxiv:1501.04544 v1 · 2015-01-19 · 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{RRDX3GAC47ZXGOJJUPXIAAORK7}

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	2026-05-18T02:29:08.770427Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c477d9802e7f3733929a3ee8001d157ca8d455aee3adfb3e75e0c52b19c7208

Aliases

arxiv: 1501.04544 · arxiv_version: 1501.04544v1 · doi: 10.48550/arxiv.1501.04544 · pith_short_12: RRDX3GAC47ZX · pith_short_16: RRDX3GAC47ZXGOJJ · pith_short_8: RRDX3GAC

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/RRDX3GAC47ZXGOJJUPXIAAORK7 \
  | 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: 8c477d9802e7f3733929a3ee8001d157ca8d455aee3adfb3e75e0c52b19c7208

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a38ef6cf4336f11c4901b4a813b4ea56989289c44dc2f5852aa995776dcf3ad5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2015-01-19T16:37:49Z",
    "title_canon_sha256": "7a7e5fa6a06c209390fe46b36212948160b457322236ffa75f93f5116c741c30"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.04544",
    "kind": "arxiv",
    "version": 1
  }
}