Pith Number

pith:JCVJ63YK

pith:2026:JCVJ63YKVCSJ6KS3SSGIQ6SPDH

not attested not anchored not stored refs pending

Unbiased Estimation of Conditional Covariance for Quantum Optomechanics

Katsuta Sakai, Nobuyuki Matsumoto

arxiv:2607.06431 v1 · 2026-07-07 · 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{JCVJ63YKVCSJ6KS3SSGIQ6SPDH}

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	2026-07-08T01:19:25.081952Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

48aa9f6f0aa8a49f2a5b948c887a4f19ecd20f2a6069226310012447d18de458

Aliases

arxiv: 2607.06431 · arxiv_version: 2607.06431v1 · doi: 10.48550/arxiv.2607.06431 · pith_short_12: JCVJ63YKVCSJ · pith_short_16: JCVJ63YKVCSJ6KS3 · pith_short_8: JCVJ63YK

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/JCVJ63YKVCSJ6KS3SSGIQ6SPDH \
  | 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: 48aa9f6f0aa8a49f2a5b948c887a4f19ecd20f2a6069226310012447d18de458

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8406485842d50899e749276a2b5ff341d7ac612467c51c04177f5ff12712740c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-07-07T15:59:37Z",
    "title_canon_sha256": "be5325c19f4abe9c881beaaf2d8aaf9036009b68d4fccdd0cea2d1be4ea18e1e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.06431",
    "kind": "arxiv",
    "version": 1
  }
}