Pith Number

pith:7I4XSIMP

pith:2009:7I4XSIMPT7LP36HZW7XMH6XKBR

not attested not anchored not stored refs pending

Entanglement Metrology Using a Joint Readout of Superconducting Qubits

A. Nunnenkamp, J. M. Chow, J. M. Gambetta, L. DiCarlo, Lev S. Bishop, L. Frunzio, M. H. Devoret, R. J. Schoelkopf, S. M. Girvin

arxiv:0908.1955 v1 · 2009-08-13 · cond-mat.supr-con · cond-mat.mes-hall · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7I4XSIMPT7LP36HZW7XMH6XKBR}

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	2026-05-18T04:31:21.148786Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa3979218f9fd6fdf8f9b7eec3faea0c5ba85e986c1cbc8e0275f13b887539fa

Aliases

arxiv: 0908.1955 · arxiv_version: 0908.1955v1 · doi: 10.48550/arxiv.0908.1955 · pith_short_12: 7I4XSIMPT7LP · pith_short_16: 7I4XSIMPT7LP36HZ · pith_short_8: 7I4XSIMP

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/7I4XSIMPT7LP36HZW7XMH6XKBR \
  | 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: fa3979218f9fd6fdf8f9b7eec3faea0c5ba85e986c1cbc8e0275f13b887539fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ecb1e7135484c6a6e3d27f8408c4bcf1de0d414490246fda8b88db8437a0c9d",
    "cross_cats_sorted": [
      "cond-mat.mes-hall",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2009-08-13T19:06:57Z",
    "title_canon_sha256": "2b15cca84d0542589b3fd3ceac9da384ea00d717e6a9aca67c1a35cf1efa435a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.1955",
    "kind": "arxiv",
    "version": 1
  }
}