Pith Number

pith:ATP44HB3

pith:2009:ATP44HB33QMHYMHAWQ3N7EHYU7

not attested not anchored not stored refs pending

The surface states of topological insulators - Dirac fermion in curved two dimensional spaces

Dung-Hai Lee

arxiv:0908.2490 v2 · 2009-08-18 · 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{ATP44HB33QMHYMHAWQ3N7EHYU7}

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	2026-05-18T03:23:58.148908Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

04dfce1c3bdc187c30e0b436df90f8a7f7c2ef3605d5ea9835e2673fc5a13cd1

Aliases

arxiv: 0908.2490 · arxiv_version: 0908.2490v2 · doi: 10.48550/arxiv.0908.2490 · pith_short_12: ATP44HB33QMH · pith_short_16: ATP44HB33QMHYMHA · pith_short_8: ATP44HB3

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/ATP44HB33QMHYMHAWQ3N7EHYU7 \
  | 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: 04dfce1c3bdc187c30e0b436df90f8a7f7c2ef3605d5ea9835e2673fc5a13cd1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8b7d6183cded7409cb4ceb8030610d2c686f70d08dd684dc7a2ac19f411103e0",
    "cross_cats_sorted": [
      "cond-mat.str-el"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2009-08-18T05:27:18Z",
    "title_canon_sha256": "a1f925d976058bf0878fc0f8b32f122d65fb6232691e1835e9581f45fa4ffd68"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.2490",
    "kind": "arxiv",
    "version": 2
  }
}