Pith Number

pith:3GCMI67H

pith:2015:3GCMI67HBQR7YOTSFRHF5JEMLS

not attested not anchored not stored refs pending

Observation of negative refraction of Dirac fermions in graphene

Geon-Hyoung Park, Gil-Ho Lee, Hu-Jong Lee

arxiv:1506.06281 v2 · 2015-06-20 · 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{3GCMI67HBQR7YOTSFRHF5JEMLS}

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	2026-05-18T01:04:00.213429Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d984c47be70c23fc3a722c4e5ea48c5caa61353f186814b8f76ab52e1b460974

Aliases

arxiv: 1506.06281 · arxiv_version: 1506.06281v2 · doi: 10.48550/arxiv.1506.06281 · pith_short_12: 3GCMI67HBQR7 · pith_short_16: 3GCMI67HBQR7YOTS · pith_short_8: 3GCMI67H

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/3GCMI67HBQR7YOTSFRHF5JEMLS \
  | 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: d984c47be70c23fc3a722c4e5ea48c5caa61353f186814b8f76ab52e1b460974

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "97d52464504fb8f5edda84d03eeb2844c36d7508a54cf44ead82cf0cfa2bae1b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2015-06-20T18:52:59Z",
    "title_canon_sha256": "6d5157d03a66565647e68edfc332a267ae8d9795e216171d11daf3ba1725f0eb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.06281",
    "kind": "arxiv",
    "version": 2
  }
}