Pith Number

pith:QPRPUFB5

pith:2010:QPRPUFB5S4AEWU6NF7YSO6ILTG

not attested not anchored not stored refs pending

Extra Dirac points in the energy spectrum for superlattices on single-layer graphene

F. M. Peeters, M. Barbier, P. Vasilopoulos

arxiv:1002.1442 v1 · 2010-02-07 · 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{QPRPUFB5S4AEWU6NF7YSO6ILTG}

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	2026-05-18T02:09:18.647116Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83e2fa143d97004b53cd2ff127790b99bd5baeeab625e2e470d5df3d57312b1c

Aliases

arxiv: 1002.1442 · arxiv_version: 1002.1442v1 · doi: 10.48550/arxiv.1002.1442 · pith_short_12: QPRPUFB5S4AE · pith_short_16: QPRPUFB5S4AEWU6N · pith_short_8: QPRPUFB5

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/QPRPUFB5S4AEWU6NF7YSO6ILTG \
  | 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: 83e2fa143d97004b53cd2ff127790b99bd5baeeab625e2e470d5df3d57312b1c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ccb2471309fac199e9bcae5ec6e2129b3e8dd5e10c2407ec15fb07cc4fa48542",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2010-02-07T11:29:35Z",
    "title_canon_sha256": "d20112250d952993ee0a3801a8f31ec76b4b9a434eba2c46804c5c714e5126b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.1442",
    "kind": "arxiv",
    "version": 1
  }
}