Pith Number

pith:COPKBQT4

pith:2011:COPKBQT4NRFKU344BWIK4QJIHZ

not attested not anchored not stored refs pending

Behavior of a Magnetic Impurity in Graphene in the Presence of a Vacancy

F. M. Hu, Hai-Qing Lin, J. E. Gubernatis, R. M. Nieminen, Yan-Chao Li

arxiv:1112.1216 v2 · 2011-12-06 · cond-mat.str-el

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{COPKBQT4NRFKU344BWIK4QJIHZ}

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	2026-05-18T03:59:12.148437Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

139ea0c27c6c4aaa6f9c0d90ae41283e52f9f514b5eb6637cf786840a7aa1bbc

Aliases

arxiv: 1112.1216 · arxiv_version: 1112.1216v2 · doi: 10.48550/arxiv.1112.1216 · pith_short_12: COPKBQT4NRFK · pith_short_16: COPKBQT4NRFKU344 · pith_short_8: COPKBQT4

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/COPKBQT4NRFKU344BWIK4QJIHZ \
  | 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: 139ea0c27c6c4aaa6f9c0d90ae41283e52f9f514b5eb6637cf786840a7aa1bbc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ab1a8e7371af1a0f118b6fe1864fa0b2811a2953edf890c33542f965d552e26",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.str-el",
    "submitted_at": "2011-12-06T10:14:51Z",
    "title_canon_sha256": "00346695bbe0f7a3c965d949f3aef00c1f978902efee69e6aaa0e8fe18178b1e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.1216",
    "kind": "arxiv",
    "version": 2
  }
}