Pith Number

pith:YU7BOIHF

pith:2009:YU7BOIHFGKYBIDOKJIF4QKCTQU

not attested not anchored not stored refs pending

Spin squeezing and concurrence

Jian Ma, Xiaoguang Wang, Xiaolei Yin, Xiaoqian Wang

arxiv:0912.1752 v3 · 2009-12-09 · 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{YU7BOIHFGKYBIDOKJIF4QKCTQU}

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.

Cited by

1 paper in Pith

Estimating the best separable approximation of non-pure spin-squeezed states

Receipt and verification

First computed	2026-05-18T04:31:21.114723Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c53e1720e532b0140dca4a0bc8285385060da63c13d8a9021f050d91b72cab02

Aliases

arxiv: 0912.1752 · arxiv_version: 0912.1752v3 · doi: 10.48550/arxiv.0912.1752 · pith_short_12: YU7BOIHFGKYB · pith_short_16: YU7BOIHFGKYBIDOK · pith_short_8: YU7BOIHF

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/YU7BOIHFGKYBIDOKJIF4QKCTQU \
  | 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: c53e1720e532b0140dca4a0bc8285385060da63c13d8a9021f050d91b72cab02

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c095e1fed732806707617cf26778bd7ccf72d354faa3979b73d69d3c226d9a0a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-12-09T14:11:20Z",
    "title_canon_sha256": "a036ee1dcf5755d5b3c9ea4a8776935d39ac16cf3fe784df4120aba6b4c76dbb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.1752",
    "kind": "arxiv",
    "version": 3
  }
}