Pith Number

pith:SDXQHE6D

pith:2011:SDXQHE6DZFP3TFOKXGO7CO4DRI

not attested not anchored not stored refs pending

Optical contrast of single- and multi-layer graphene deposited on a gold substrate

Igor Wlasny, Pawel Dabrowski, Zbigniew Klusek

arxiv:1102.4953 v4 · 2011-02-24 · 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{SDXQHE6DZFP3TFOKXGO7CO4DRI}

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	2026-05-18T03:41:29.729767Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90ef0393c3c95fb995cab99df13b838a3122d47e6cdc5fb2f58e5b35e8df5ece

Aliases

arxiv: 1102.4953 · arxiv_version: 1102.4953v4 · doi: 10.48550/arxiv.1102.4953 · pith_short_12: SDXQHE6DZFP3 · pith_short_16: SDXQHE6DZFP3TFOK · pith_short_8: SDXQHE6D

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/SDXQHE6DZFP3TFOKXGO7CO4DRI \
  | 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: 90ef0393c3c95fb995cab99df13b838a3122d47e6cdc5fb2f58e5b35e8df5ece

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd3213c92aeb475cfb81a45ade0e10257f79cf90f62c8a3026951de0028adf41",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2011-02-24T10:47:55Z",
    "title_canon_sha256": "f3ea69a2777d012fe691310b4ae704117b2a4d0d93f19764092542f93a52791c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.4953",
    "kind": "arxiv",
    "version": 4
  }
}