Pith Number

pith:4QGRXFR4

pith:2009:4QGRXFR4VDND2J4NHJA5N3KUL7

not attested not anchored not stored refs pending

Critical Behavior of a Point Contact in a Quantum Spin Hall Insulator

C.L. Kane, Jeffrey C.Y. Teo

arxiv:0904.3109 v1 · 2009-04-21 · cond-mat.mes-hall · cond-mat.str-el

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4QGRXFR4VDND2J4NHJA5N3KUL7}

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	2026-05-18T02:13:58.753005Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e40d1b963ca8da3d278d3a41d6ed545fce935a8ba35de8cfb60bcfafc79eb529

Aliases

arxiv: 0904.3109 · arxiv_version: 0904.3109v1 · doi: 10.48550/arxiv.0904.3109 · pith_short_12: 4QGRXFR4VDND · pith_short_16: 4QGRXFR4VDND2J4N · pith_short_8: 4QGRXFR4

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/4QGRXFR4VDND2J4NHJA5N3KUL7 \
  | 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: e40d1b963ca8da3d278d3a41d6ed545fce935a8ba35de8cfb60bcfafc79eb529

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6e371db6f0ca83dee722be039dd2a88e9f271147a2fc1f068d0774400fc0a7f",
    "cross_cats_sorted": [
      "cond-mat.str-el"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2009-04-21T19:03:30Z",
    "title_canon_sha256": "f04f3b779e9aabe9e3d213f1f2e52adc332fa50a1ac8bb39eb23da1d7fa6b269"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.3109",
    "kind": "arxiv",
    "version": 1
  }
}