Pith Number

pith:6GZBZB52

pith:2022:6GZBZB52TLKLEUFJVTFT4QE3ON

not attested not anchored not stored refs pending

Multiparameter quantum metrology in the Heisenberg Limit regime: many repetition scenario vs. full optimization

Rafa{\l} Demkowicz-Dobrza\'nski, Wojciech G\'orecki

arxiv:2203.09541 v3 · 2022-03-17 · 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{6GZBZB52TLKLEUFJVTFT4QE3ON}

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	2026-07-05T04:57:45.380406Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f1b21c87ba9ad4b250a9accb3e409b735943303a6e5f5dd462f330478e09b1cb

Aliases

arxiv: 2203.09541 · arxiv_version: 2203.09541v3 · doi: 10.48550/arxiv.2203.09541 · pith_short_12: 6GZBZB52TLKL · pith_short_16: 6GZBZB52TLKLEUFJ · pith_short_8: 6GZBZB52

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/6GZBZB52TLKLEUFJVTFT4QE3ON \
  | 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: f1b21c87ba9ad4b250a9accb3e409b735943303a6e5f5dd462f330478e09b1cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4573ae867e1152c94e44b980e5773a22253619d549d5af665bc6fcee556d8cd2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2022-03-17T18:01:05Z",
    "title_canon_sha256": "fde0aa920e8dcda621107bce6cf540d54fe6b5857e764a82a311d94d34a32722"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.09541",
    "kind": "arxiv",
    "version": 3
  }
}