Pith Number

pith:IQLBCIKJ

pith:2013:IQLBCIKJF4VQFHBMP4M5ACZGPS

not attested not anchored not stored refs pending

Quantum Fisher information and spin squeezing in one-axis twisting model

Jian Ma, Jing Liu, Wei Zhong, Xiaoguang Wang

arxiv:1309.4842 v2 · 2013-09-19 · 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{IQLBCIKJF4VQFHBMP4M5ACZGPS}

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	2026-05-18T02:52:34.444860Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

44161121492f2b029c2c7f19d00b267c88f8aed93f72ac420c81bb4d5696d8a9

Aliases

arxiv: 1309.4842 · arxiv_version: 1309.4842v2 · doi: 10.48550/arxiv.1309.4842 · pith_short_12: IQLBCIKJF4VQ · pith_short_16: IQLBCIKJF4VQFHBM · pith_short_8: IQLBCIKJ

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/IQLBCIKJF4VQFHBMP4M5ACZGPS \
  | 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: 44161121492f2b029c2c7f19d00b267c88f8aed93f72ac420c81bb4d5696d8a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a46d4294deb95e2f3f88f0b803385abfbde47895c2557659e20e6d447fa1edf1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-09-19T02:58:29Z",
    "title_canon_sha256": "404c794dd2e17b70d4bd4e710af2eabbb565d45491f83569da2e9ef28e151c6e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.4842",
    "kind": "arxiv",
    "version": 2
  }
}