Pith Number

pith:AV6YS7QW

pith:2018:AV6YS7QWSJXCAXGIAUT3CMTX43

not attested not anchored not stored refs pending

Quantum-limited time-frequency estimation through mode-selective photon measurement

Bohumil Stoklasa, Christine Silberhorn, Jaroslav \v{R}eh\'a\v{c}ek, John M. Donohue, Luis L. S\'anchez-Soto, Martin Pa\'ur, Vahid Ansari, Zden\v{e}k Hradil

arxiv:1805.02491 v1 · 2018-05-07 · quant-ph · physics.optics

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AV6YS7QWSJXCAXGIAUT3CMTX43}

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	2026-05-18T00:06:02.298668Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

057d897e16926e205cc80527b13277e6da5fbde5fc5cb646c43f3267993d2e63

Aliases

arxiv: 1805.02491 · arxiv_version: 1805.02491v1 · doi: 10.48550/arxiv.1805.02491 · pith_short_12: AV6YS7QWSJXC · pith_short_16: AV6YS7QWSJXCAXGI · pith_short_8: AV6YS7QW

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/AV6YS7QWSJXCAXGIAUT3CMTX43 \
  | 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: 057d897e16926e205cc80527b13277e6da5fbde5fc5cb646c43f3267993d2e63

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ab5112247bfed33119b00d4c2959c8169a71b8ca3fe08ffdb641547339e15b7",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-05-07T13:04:06Z",
    "title_canon_sha256": "675e477f3fb5fb4edee01256f7404784847be263db1dbf959b83cf9ed9f1b923"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.02491",
    "kind": "arxiv",
    "version": 1
  }
}