Pith Number

pith:Q4W3SZHW

pith:2014:Q4W3SZHWI3UGUS4VWE23CE6TT2

not attested not anchored not stored refs pending

Controlling the energy gap of graphene by Fermi velocity engineering

Jonas R. F. Lima

arxiv:1412.0516 v1 · 2014-12-01 · cond-mat.mtrl-sci · 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{Q4W3SZHWI3UGUS4VWE23CE6TT2}

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	2026-05-18T02:32:23.220489Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

872db964f646e86a4b95b135b113d39eaeb621ea42cdf67ec9a2ea2741ba7677

Aliases

arxiv: 1412.0516 · arxiv_version: 1412.0516v1 · doi: 10.48550/arxiv.1412.0516 · pith_short_12: Q4W3SZHWI3UG · pith_short_16: Q4W3SZHWI3UGUS4V · pith_short_8: Q4W3SZHW

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/Q4W3SZHWI3UGUS4VWE23CE6TT2 \
  | 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: 872db964f646e86a4b95b135b113d39eaeb621ea42cdf67ec9a2ea2741ba7677

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a5fc4cdddcc935275e492f815900f6e3c434e7a48cb9065f859cb2fa52be0395",
    "cross_cats_sorted": [
      "cond-mat.mes-hall"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2014-12-01T15:46:58Z",
    "title_canon_sha256": "e107d0cf2c3f28d87e51fee13e51b36fbccbc48c137aa6bbe341317415ae4fa8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.0516",
    "kind": "arxiv",
    "version": 1
  }
}