Pith Number

pith:PYKN5PU3

pith:2007:PYKN5PU3H37VR3ZHEZEC3I3ARN

not attested not anchored not stored refs pending

Entanglement of macroscopic test masses and the Standard Quantum Limit in laser interferometry

Helge Mueller-Ebhardt, Henning Rehbein, Karsten Danzmann, Roman Schnabel, Yanbei Chen

arxiv:quant-ph/0702258 v4 · 2007-02-27 · 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{PYKN5PU3H37VR3ZHEZEC3I3ARN}

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	2026-07-04T15:06:38.665827Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e14debe9b3eff58ef2726482da3608b57d39ff44de0fb8392efd50c3c932562

Aliases

arxiv: quant-ph/0702258 · arxiv_version: quant-ph/0702258v4 · doi: 10.48550/arxiv.quant-ph/0702258 · pith_short_12: PYKN5PU3H37V · pith_short_16: PYKN5PU3H37VR3ZH · pith_short_8: PYKN5PU3

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/PYKN5PU3H37VR3ZHEZEC3I3ARN \
  | 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: 7e14debe9b3eff58ef2726482da3608b57d39ff44de0fb8392efd50c3c932562

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d37c936940ca517c047d42064ed082e225a24b9fff0fb6698f7559d7b919bd4c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2007-02-27T17:35:51Z",
    "title_canon_sha256": "4e422d963668251fb14e2dbcb598d26f793825992c6c3457ad0816f85dcaf2fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0702258",
    "kind": "arxiv",
    "version": 4
  }
}