Pith Number

pith:QCAJ6YOH

pith:2011:QCAJ6YOHSMLVNAVJICV3XSNLTD

not attested not anchored not stored refs pending

Superconductivity in repulsive Fermi-systems at low density

D. V. Efremov, M. S. Mar'enko, M. Yu. Kagan, V. V. Val'kov

arxiv:1111.3230 v1 · 2011-11-14 · 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{QCAJ6YOHSMLVNAVJICV3XSNLTD}

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	2026-05-18T04:08:22.762079Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80809f61c793175682a940abbbc9ab98fc891fd274c2b4a449eb718fb62a3b0b

Aliases

arxiv: 1111.3230 · arxiv_version: 1111.3230v1 · doi: 10.48550/arxiv.1111.3230 · pith_short_12: QCAJ6YOHSMLV · pith_short_16: QCAJ6YOHSMLVNAVJ · pith_short_8: QCAJ6YOH

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/QCAJ6YOHSMLVNAVJICV3XSNLTD \
  | 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: 80809f61c793175682a940abbbc9ab98fc891fd274c2b4a449eb718fb62a3b0b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d523ae785ff9f49275ad7206e2ee3515ff804f51e8af864e6dc9b6e1c21805ab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2011-11-14T14:47:39Z",
    "title_canon_sha256": "cb41391a4b855b606d808c7d9b2644cbc779ca78b3f050114be7f4852db3953e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.3230",
    "kind": "arxiv",
    "version": 1
  }
}