Pith Number

pith:FKB5UIVJ

pith:2014:FKB5UIVJZ5GD7J3E7JHP5ZOEGE

not attested not anchored not stored refs pending

Improved Quantum Magnetometry beyond the Standard Quantum Limit

J. B. Brask, J. Kolodynski, R. Chaves

arxiv:1411.0716 v3 · 2014-11-03 · 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{FKB5UIVJZ5GD7J3E7JHP5ZOEGE}

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	2026-05-18T00:40:28.996619Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a83da22a9cf4c3fa764fa4efee5c4312e694513fe9db0512c5890038ab90ab9

Aliases

arxiv: 1411.0716 · arxiv_version: 1411.0716v3 · doi: 10.48550/arxiv.1411.0716 · pith_short_12: FKB5UIVJZ5GD · pith_short_16: FKB5UIVJZ5GD7J3E · pith_short_8: FKB5UIVJ

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/FKB5UIVJZ5GD7J3E7JHP5ZOEGE \
  | 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: 2a83da22a9cf4c3fa764fa4efee5c4312e694513fe9db0512c5890038ab90ab9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "672abc080651e00695f4fe5719d477e6cbb8aaafdfe342d843f6854c25510ddb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2014-11-03T22:04:06Z",
    "title_canon_sha256": "f2c47e36f7ec45fcc6f3dbb9e9d9d3378d1d5e5a5bed6a65f681eca32977a5ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.0716",
    "kind": "arxiv",
    "version": 3
  }
}