Pith Number

pith:3UUKKGDL

pith:2018:3UUKKGDLSMTADE2KVJNXCAUDVS

not attested not anchored not stored refs pending

Orbital-angular-momentum-enhanced estimation of sub-Heisenberg-limited angular displacement with two-mode squeezed vacuum and parity detection

Jiandong Zhang, Longzhu Cen, Yuan Zhao, Zijing Zhang

arxiv:1802.05790 v2 · 2018-02-15 · 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{3UUKKGDLSMTADE2KVJNXCAUDVS}

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	2026-05-18T00:04:13.271028Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd28a5186b932601934aaa5b710283acb72f2b4b550eafc14be9a69a46730882

Aliases

arxiv: 1802.05790 · arxiv_version: 1802.05790v2 · doi: 10.48550/arxiv.1802.05790 · pith_short_12: 3UUKKGDLSMTA · pith_short_16: 3UUKKGDLSMTADE2K · pith_short_8: 3UUKKGDL

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/3UUKKGDLSMTADE2KVJNXCAUDVS \
  | 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: dd28a5186b932601934aaa5b710283acb72f2b4b550eafc14be9a69a46730882

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1cb7a5b6844d8b0d7e2c1a87430e28ee714503a497fd7783d8fd91dadd5b611e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-02-15T23:13:32Z",
    "title_canon_sha256": "4274796e954e43e2e1e993ca77c35fae55b6d48cec9ca1aa213266073b843aee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.05790",
    "kind": "arxiv",
    "version": 2
  }
}