Pith Number

pith:SPNS6ICF

pith:2009:SPNS6ICFOK6MYZWEVH5ZDQPEBV

not attested not anchored not stored refs pending

Improving the Coherence Time of Superconducting Coplanar Resonators

A. D. O'Connell, A. N. Cleland, D. Sank, Erik Lucero, H. Wang, John M. Martinis, J. Wenner, M. Ansmann, M. Hofheinz, M. Lenander, M. Neeley, M. Weides, R. C. Bialczak

arxiv:0909.0547 v1 · 2009-09-03 · cond-mat.mes-hall · 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{SPNS6ICFOK6MYZWEVH5ZDQPEBV}

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	2026-05-18T04:36:08.879426Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93db2f204572bccc66c4a9fb91c1e40d74054a44f5b58216bac4baf0fc15747e

Aliases

arxiv: 0909.0547 · arxiv_version: 0909.0547v1 · doi: 10.48550/arxiv.0909.0547 · pith_short_12: SPNS6ICFOK6M · pith_short_16: SPNS6ICFOK6MYZWE · pith_short_8: SPNS6ICF

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/SPNS6ICFOK6MYZWEVH5ZDQPEBV \
  | 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: 93db2f204572bccc66c4a9fb91c1e40d74054a44f5b58216bac4baf0fc15747e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eaf0049b8b08552bc5eab90699c3c5d1825b4aacfac520ae64c17459d045b8d3",
    "cross_cats_sorted": [
      "cond-mat.supr-con"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2009-09-03T19:13:09Z",
    "title_canon_sha256": "1251902fbf6f734c88cbc798d9f1f20ec9f3ee718cf55fd11554b87e34404907"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.0547",
    "kind": "arxiv",
    "version": 1
  }
}