Pith Number

pith:NPTU2EKE

pith:2009:NPTU2EKEG5FFJD3XTKM4ZWFOOS

not attested not anchored not stored refs pending

Observation of fractional quantum Hall effect at even-denominator 1/2 and 1/4 fillings in asymmetric wide quantum wells

J. Shabani, M. Shayegan, T. Gokmen, Y. T. Chiu

arxiv:0909.2262 v1 · 2009-09-11 · 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{NPTU2EKEG5FFJD3XTKM4ZWFOOS}

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	2026-05-18T02:11:48.739508Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6be74d1144374a548f779a99ccd8ae74a79598bc949430dee511dcba89582b08

Aliases

arxiv: 0909.2262 · arxiv_version: 0909.2262v1 · doi: 10.48550/arxiv.0909.2262 · pith_short_12: NPTU2EKEG5FF · pith_short_16: NPTU2EKEG5FFJD3X · pith_short_8: NPTU2EKE

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/NPTU2EKEG5FFJD3XTKM4ZWFOOS \
  | 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: 6be74d1144374a548f779a99ccd8ae74a79598bc949430dee511dcba89582b08

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d7f68daf6e9357cf27ea2c5732567454080568d15ae2a0aa05f70c1bbe1d9cb3",
    "cross_cats_sorted": [
      "cond-mat.str-el"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2009-09-11T21:20:01Z",
    "title_canon_sha256": "d9ae3545e2cd565e0e7918ff439b99dfd8f3ccd3055b28916a55d2eaea398530"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.2262",
    "kind": "arxiv",
    "version": 1
  }
}