Pith Number

pith:LZWCKKZK

pith:2019:LZWCKKZKEYK5J6DL7TFXDB7WM3

not attested not anchored not stored refs pending

Quantum imaging with sub-Poissonian light: challenges and perspectives in optical metrology

Ivano Ruo-Berchera, Ivo Pietro Degiovanni

arxiv:1904.01251 v1 · 2019-04-02 · 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{LZWCKKZKEYK5J6DL7TFXDB7WM3}

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	2026-05-17T23:49:35.407964Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5e6c252b2a2615d4f86bfccb7187f666fc0d27ab41808103d5b72dc64aae223a

Aliases

arxiv: 1904.01251 · arxiv_version: 1904.01251v1 · doi: 10.48550/arxiv.1904.01251 · pith_short_12: LZWCKKZKEYK5 · pith_short_16: LZWCKKZKEYK5J6DL · pith_short_8: LZWCKKZK

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/LZWCKKZKEYK5J6DL7TFXDB7WM3 \
  | 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: 5e6c252b2a2615d4f86bfccb7187f666fc0d27ab41808103d5b72dc64aae223a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "333b4196988ef428090b0d722d2186008dfe57d0480179f2fce4653ff5cc34a1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-04-02T07:23:53Z",
    "title_canon_sha256": "b74cc052cc0f2ca11d76e5df344cf5d004e4d47781261f0f4072f37ac9295675"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.01251",
    "kind": "arxiv",
    "version": 1
  }
}