Pith Number

pith:7TQ6LQOW

pith:2026:7TQ6LQOWIJ6Z3JBZOV65MS5OS5

not attested not anchored not stored refs pending

Rigorous characterization of continuous-variable quantum states via optical parametric amplifiers

Fumiya Hanamura, Manthan Badbaria, Maxime Garnier, Rajveer Nehra, Ulysse Chabaud

arxiv:2607.17023 v1 · 2026-07-19 · 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{7TQ6LQOWIJ6Z3JBZOV65MS5OS5}

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	2026-07-21T01:21:11.073278Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fce1e5c1d6427d9da439757dd64bae975e398a9ef070b95da04d53f03e5c3b1c

Aliases

arxiv: 2607.17023 · arxiv_version: 2607.17023v1 · doi: 10.48550/arxiv.2607.17023 · pith_short_12: 7TQ6LQOWIJ6Z · pith_short_16: 7TQ6LQOWIJ6Z3JBZ · pith_short_8: 7TQ6LQOW

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/7TQ6LQOWIJ6Z3JBZOV65MS5OS5 \
  | 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: fce1e5c1d6427d9da439757dd64bae975e398a9ef070b95da04d53f03e5c3b1c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6182f2fcd9e3ad2f59ad60c7595774fb96a1dda09a4b4c1e2cbffbfd23363df6",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-07-19T01:22:27Z",
    "title_canon_sha256": "423ae580be9a9833914417db7f79559eed5cf2895b35aac81393c8570f7b714f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.17023",
    "kind": "arxiv",
    "version": 1
  }
}