Pith Number

pith:XYCOB32U

pith:2007:XYCOB32U2JVVEBYW52ITAWGEXY

not attested not anchored not stored refs pending

Polar Kerr Effect Measurements of YBa2Cu3O6+x: Evidence for Broken Symmetry Near the Pseudogap Temperature

A. Kapitulnik, D. A. Bonn, Elizabeth Schemm, G. Deutscher, G. Koster, Jing Xia, M. M. Fejer, R. Liang, S.A. Kivelson, W. N. Hardy, W. Siemons

arxiv:0711.2494 v2 · 2007-11-15 · 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{XYCOB32U2JVVEBYW52ITAWGEXY}

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	2026-07-04T17:06:42.864905Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be04e0ef54d26b520716ee913058c4be355c9835c96e7022d7fd9b80600f6c70

Aliases

arxiv: 0711.2494 · arxiv_version: 0711.2494v2 · doi: 10.48550/arxiv.0711.2494 · pith_short_12: XYCOB32U2JVV · pith_short_16: XYCOB32U2JVVEBYW · pith_short_8: XYCOB32U

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/XYCOB32U2JVVEBYW52ITAWGEXY \
  | 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: be04e0ef54d26b520716ee913058c4be355c9835c96e7022d7fd9b80600f6c70

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a86c6f09d8f5ee694797f057d984ffc4b95af6b1376f599e71d473a69b6a1aa2",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2007-11-15T19:33:54Z",
    "title_canon_sha256": "0eeb612500c020a6903ea08e2e2cdbf7633a6f848e18128b78961a6baebd386e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0711.2494",
    "kind": "arxiv",
    "version": 2
  }
}