Pith Number

pith:IDMP5V6E

pith:2021:IDMP5V6EBLPZEBPSS5DN67TCFR

not attested not anchored not stored refs pending

Room-temperature quantum spin Hall edge state in a higher-order topological insulator Bi$_4$Br$_4$

Brian Casas, Chiho Yoon, Daniel Multer, Fan Zhang, Guangming Cheng, Hsin Lin, Jia-Xin Yin, Luis Balicas, Maksim Litskevich, Md Shafayat Hossain, M. Zahid Hasan, Nana Shumiya, Nan Yao, Qi Zhang, Shuang Jia, Tay-Rong Chang, Titus Neupert, Tyler A. Cochran, Xian P. Yang, Yen-Chuan Lin, Ying Yang, Yongkai Li, Yugui Yao, Yu-Xiao Jiang, Zhiwei Wang, Zhujun Yuan, Zi-Jia Cheng

arxiv:2110.05718 v3 · 2021-10-12 · cond-mat.mes-hall · cond-mat.mtrl-sci · cond-mat.str-el · physics.app-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IDMP5V6EBLPZEBPSS5DN67TCFR}

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	2026-07-05T05:02:55.107156Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

40d8fed7c40adf9205f29746df7e622c409d73c35315a253b3e9efcfbfcd8fcd

Aliases

arxiv: 2110.05718 · arxiv_version: 2110.05718v3 · doi: 10.48550/arxiv.2110.05718 · pith_short_12: IDMP5V6EBLPZ · pith_short_16: IDMP5V6EBLPZEBPS · pith_short_8: IDMP5V6E

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/IDMP5V6EBLPZEBPSS5DN67TCFR \
  | 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: 40d8fed7c40adf9205f29746df7e622c409d73c35315a253b3e9efcfbfcd8fcd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e81b28c9062a7da348438a31ad545cb354b97c284b8b2ffd504dfe3f8e1cf2ff",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci",
      "cond-mat.str-el",
      "physics.app-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2021-10-12T03:12:18Z",
    "title_canon_sha256": "f628fcc9282eab3cfceab2e07010b3b9fd3da358ea4c1c923fd69bc8f0f40650"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2110.05718",
    "kind": "arxiv",
    "version": 3
  }
}