Pith Number

pith:HVYJMXIO

pith:2009:HVYJMXIOCMK7QQJH74SBBA4SMM

not attested not anchored not stored refs pending

Experimental demonstration of the topological surface states protected by the time-reversal symmetry

Haijun Zhang, Jin-Feng Jia, Ke He, Lili Wang, Peng Cheng, Qi-Kun Xue, Tong Zhang, Xi Chen, Xi Dai, XinCheng Xie, Xucun Ma, Zhong Fang

arxiv:0908.4136 v3 · 2009-08-28 · 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{HVYJMXIOCMK7QQJH74SBBA4SMM}

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	2026-05-18T02:12:21.742957Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d70965d0e1315f84127ff241083926337f8989f4fb36b7e38b9b8f3a0a2c2c3

Aliases

arxiv: 0908.4136 · arxiv_version: 0908.4136v3 · doi: 10.48550/arxiv.0908.4136 · pith_short_12: HVYJMXIOCMK7 · pith_short_16: HVYJMXIOCMK7QQJH · pith_short_8: HVYJMXIO

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/HVYJMXIOCMK7QQJH74SBBA4SMM \
  | 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: 3d70965d0e1315f84127ff241083926337f8989f4fb36b7e38b9b8f3a0a2c2c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f02c0f253f86775cb76380c1f6c74e73511ba787bea0eada72e22301bbab8c51",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2009-08-28T05:33:44Z",
    "title_canon_sha256": "1139a72082a7da3157b96f94ac5a39b0be2ab79f400056275f1d7655bf7841a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.4136",
    "kind": "arxiv",
    "version": 3
  }
}