Pith Number

pith:DQ2TQPZW

pith:2018:DQ2TQPZWVQLDKWVJDCZUUIAGI4

not attested not anchored not stored refs pending

Angular displacement estimation of Heisenberg scaling: Tunable squeezed Bell state via the enhancement of spin and orbital angular momenta

Jian-dong Zhang, Long-Zhu Cen, Yuan Zhao, Zi-Jing Zhang

arxiv:1806.10294 v1 · 2018-06-27 · 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{DQ2TQPZWVQLDKWVJDCZUUIAGI4}

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	2026-05-17T23:52:59.072137Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c35383f36ac16355aa918b34a2006470a455fbf16231d898478557596608065

Aliases

arxiv: 1806.10294 · arxiv_version: 1806.10294v1 · doi: 10.48550/arxiv.1806.10294 · pith_short_12: DQ2TQPZWVQLD · pith_short_16: DQ2TQPZWVQLDKWVJ · pith_short_8: DQ2TQPZW

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/DQ2TQPZWVQLDKWVJDCZUUIAGI4 \
  | 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: 1c35383f36ac16355aa918b34a2006470a455fbf16231d898478557596608065

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1e1fa08082ee7233beb29760300a07a5e0f4e61d95e83914ae3cdb758667e6f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-06-27T04:35:01Z",
    "title_canon_sha256": "b833c1d85db42ebe93843db06e52f107992f17c8249ae375de2733bcf3818adb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.10294",
    "kind": "arxiv",
    "version": 1
  }
}