Pith Number

pith:QQGW3I2W

pith:2009:QQGW3I2WN4GEZFN46A5L4URZHQ

not attested not anchored not stored refs pending

Screening of electromagnetic field fluctuations by s--wave and d--wave superconductors

Rachele Fermani, Stefan Scheel

arxiv:0902.1981 v2 · 2009-02-11 · quant-ph · 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{QQGW3I2WN4GEZFN46A5L4URZHQ}

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	2026-05-18T02:14:48.267329Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

840d6da3566f0c4c95bcf03abe52393c2a31dc00759e5a58470e7a6151217cfe

Aliases

arxiv: 0902.1981 · arxiv_version: 0902.1981v2 · doi: 10.48550/arxiv.0902.1981 · pith_short_12: QQGW3I2WN4GE · pith_short_16: QQGW3I2WN4GEZFN4 · pith_short_8: QQGW3I2W

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/QQGW3I2WN4GEZFN46A5L4URZHQ \
  | 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: 840d6da3566f0c4c95bcf03abe52393c2a31dc00759e5a58470e7a6151217cfe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc7bf1fd99b259865fae0487b6285c0924920cdcf370c1aff5ddea60470018e3",
    "cross_cats_sorted": [
      "cond-mat.supr-con"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-02-11T20:53:40Z",
    "title_canon_sha256": "f9afafdd548c01c2a7c4086fe0fdebae6723ebc0f05527cce9f10125e9fcd025"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.1981",
    "kind": "arxiv",
    "version": 2
  }
}