Pith Number

pith:KUAYGSM2

pith:2020:KUAYGSM2QS453RGNXCAMRZG6SH

not attested not anchored not stored refs pending

Hydrogen "penta-graphene-like" structure stabilized by hafnium: a high-temperature conventional superconductor

Chris J. Pickard, Defang Duan, Hao Song, Hui Xie, Shuqing Jiang, Simon A. T. Redfern, Tian Cui, Vladimir Z. Kresin, Xiaolei Feng, Yansun Yao, Zihan Zhang

arxiv:2001.04076 v2 · 2020-01-13 · 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{KUAYGSM2QS453RGNXCAMRZG6SH}

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	2026-07-05T01:53:47.904754Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

550183499a84b9ddc4cdb880c8e4de91c25c659259bc04d00b3989063133fb9b

Aliases

arxiv: 2001.04076 · arxiv_version: 2001.04076v2 · doi: 10.48550/arxiv.2001.04076 · pith_short_12: KUAYGSM2QS45 · pith_short_16: KUAYGSM2QS453RGN · pith_short_8: KUAYGSM2

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/KUAYGSM2QS453RGNXCAMRZG6SH \
  | 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: 550183499a84b9ddc4cdb880c8e4de91c25c659259bc04d00b3989063133fb9b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26136164f841c42fea77f1de8ddd89a0647477968fe5bc1baa0959ce7b6ce00b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2020-01-13T06:12:41Z",
    "title_canon_sha256": "e1945cbcfc79beea0fb16c4afd68d94405bbb0c8c604c93fc662d88c4696c7c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.04076",
    "kind": "arxiv",
    "version": 2
  }
}