Pith Number

pith:2N5EJ2SQ

pith:2009:2N5EJ2SQ2G6KFPD6FEDPJ4BH3T

not attested not anchored not stored refs pending

Observation of the Fractional Quantum Hall Effect in Graphene

Fereshte Ghahari, Horst L. Stormer, Kirill I. Bolotin, Michael D. Shulman, Philip Kim

arxiv:0910.2763 v1 · 2009-10-15 · cond-mat.mes-hall · cond-mat.mtrl-sci

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2N5EJ2SQ2G6KFPD6FEDPJ4BH3T}

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	2026-05-18T02:11:23.523718Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d37a44ea50d1bca2bc7e2906f4f027dcd83d6c149c2717833cf2ba793f53f1b5

Aliases

arxiv: 0910.2763 · arxiv_version: 0910.2763v1 · doi: 10.48550/arxiv.0910.2763 · pith_short_12: 2N5EJ2SQ2G6K · pith_short_16: 2N5EJ2SQ2G6KFPD6 · pith_short_8: 2N5EJ2SQ

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/2N5EJ2SQ2G6KFPD6FEDPJ4BH3T \
  | 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: d37a44ea50d1bca2bc7e2906f4f027dcd83d6c149c2717833cf2ba793f53f1b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8369ed4853000d52523a23e43fb791ba2ded8eac49c44a1741c5df919a84caba",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci"
    ],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2009-10-15T02:31:48Z",
    "title_canon_sha256": "75024f50ee61e697b615c719f47881f67ceef389b465720729d5158892e99041"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.2763",
    "kind": "arxiv",
    "version": 1
  }
}