Pith Number

pith:4QD27MDW

pith:2019:4QD27MDWCYW4436RHCIUEHYWL3

not attested not anchored not stored refs pending

Ultra-thin van der Waals crystals as semiconductor quantum wells

Alexander Zhukov, Alistair Garner, Andrey Kretinin, Endre Tovari, Johanna Zultak, Kostya S Novoselov, Maciej Koperski, Matthew J Hamer, Neil R. Wilson, Roman Gorbachev, Samuel Magorrian, Sarah J Haigh, Vladimir I. Fal'ko, Yichao Zou

arxiv:1910.04215 v2 · 2019-10-09 · 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{4QD27MDWCYW4436RHCIUEHYWL3}

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	2026-07-05T00:33:18.249821Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e407afb076162dce6fd13891421f165ee7a876ae37c24b4e748bb20e4884f22d

Aliases

arxiv: 1910.04215 · arxiv_version: 1910.04215v2 · doi: 10.48550/arxiv.1910.04215 · pith_short_12: 4QD27MDWCYW4 · pith_short_16: 4QD27MDWCYW4436R · pith_short_8: 4QD27MDW

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/4QD27MDWCYW4436RHCIUEHYWL3 \
  | 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: e407afb076162dce6fd13891421f165ee7a876ae37c24b4e748bb20e4884f22d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e01a7c783cd6b9d8fef6e0e4a9a4cd5ed6d92ac3f71cf522dc1ed3b942dd005",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2019-10-09T19:41:01Z",
    "title_canon_sha256": "e1625afcd5036956c2b917ed25e4849cd5d161f4816e3a7952062ebf6fe9ba68"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.04215",
    "kind": "arxiv",
    "version": 2
  }
}