Pith Number

pith:67KC6VBT

pith:2019:67KC6VBTPCEWTJXYLKBXWWWCZB

not attested not anchored not stored refs pending

Emergent $Z_2$ Topological Invariant and Robust Helical Edge States in Two-Dimensional Topological Metals

Chui-Zhen Chen, Dong-Hui Xu, Hua Jiang, X. C. Xie

arxiv:1905.00638 v2 · 2019-05-02 · cond-mat.mes-hall

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{67KC6VBTPCEWTJXYLKBXWWWCZB}

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	2026-07-05T01:02:27.032059Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f7d42f5433788969a6f85a837b5ac2c878721e304c297403909d76b5ac37c5bd

Aliases

arxiv: 1905.00638 · arxiv_version: 1905.00638v2 · doi: 10.48550/arxiv.1905.00638 · pith_short_12: 67KC6VBTPCEW · pith_short_16: 67KC6VBTPCEWTJXY · pith_short_8: 67KC6VBT

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/67KC6VBTPCEWTJXYLKBXWWWCZB \
  | 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: f7d42f5433788969a6f85a837b5ac2c878721e304c297403909d76b5ac37c5bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7d40cae7bd92c686e86473fe625b9c2b662ee49bdc8cdb746e51dbdbe52c49c0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2019-05-02T09:41:41Z",
    "title_canon_sha256": "27569df4cb44d98dca40e9232fa8b5dfe92e7ea9a8d3e8f94ffcd3f27ec59c0b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.00638",
    "kind": "arxiv",
    "version": 2
  }
}