Pith Number

pith:T7HKPDLZ

pith:2014:T7HKPDLZ6QS7DMUW5YXQRVKYQ7

not attested not anchored not stored refs pending

Heisenberg-limited metrology with information recycling

Carlton M. Caves, Matthias D. Lang, Simon A. Haine, Stuart S. Szigeti

arxiv:1411.5111 v2 · 2014-11-19 · quant-ph · cond-mat.quant-gas · 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{T7HKPDLZ6QS7DMUW5YXQRVKYQ7}

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	2026-05-18T02:17:21.785963Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9fcea78d79f425f1b296ee2f08d55887deeb5def85fcbefdf5653c0bc98101d9

Aliases

arxiv: 1411.5111 · arxiv_version: 1411.5111v2 · doi: 10.48550/arxiv.1411.5111 · pith_short_12: T7HKPDLZ6QS7 · pith_short_16: T7HKPDLZ6QS7DMUW · pith_short_8: T7HKPDLZ

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/T7HKPDLZ6QS7DMUW5YXQRVKYQ7 \
  | 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: 9fcea78d79f425f1b296ee2f08d55887deeb5def85fcbefdf5653c0bc98101d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ebcc5d204b90d0c9362e5d927a8e23f869dde00c405729f2a507c4c051b284b9",
    "cross_cats_sorted": [
      "cond-mat.quant-gas",
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2014-11-19T05:03:12Z",
    "title_canon_sha256": "822d270256d7f2bcb6f5cc1811ec9509218bdd5626f87c613f87ebfd8580dfbd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.5111",
    "kind": "arxiv",
    "version": 2
  }
}