Pith Number

pith:Y3OG7XQR

pith:2011:Y3OG7XQRWHH3XUPBCCAQ5AUKJE

not attested not anchored not stored refs pending

Possibility of superconductivity due to electron-phonon interaction in graphene

K. B. Efetov, M. Einenkel

arxiv:1109.4507 v2 · 2011-09-21 · cond-mat.supr-con

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y3OG7XQRWHH3XUPBCCAQ5AUKJE}

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	2026-05-18T04:06:35.449999Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c6dc6fde11b1cfbbd1e110810e828a4929f5542fbeacaf4925a337b69e05b821

Aliases

arxiv: 1109.4507 · arxiv_version: 1109.4507v2 · doi: 10.48550/arxiv.1109.4507 · pith_short_12: Y3OG7XQRWHH3 · pith_short_16: Y3OG7XQRWHH3XUPB · pith_short_8: Y3OG7XQR

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/Y3OG7XQRWHH3XUPBCCAQ5AUKJE \
  | 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: c6dc6fde11b1cfbbd1e110810e828a4929f5542fbeacaf4925a337b69e05b821

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "691854b593ff9636ee7798ae0c53fad2f712d3f4d940b42251c443279e0d8c72",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2011-09-21T11:51:48Z",
    "title_canon_sha256": "1fe45ff663a09de87013530c2c77aec88a213cbd9332dfb01e4f01fd45f74f02"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.4507",
    "kind": "arxiv",
    "version": 2
  }
}