Pith Number

pith:LDU2S7FD

pith:2021:LDU2S7FDMGY32SOPHKZCSCCVXW

not attested not anchored not stored refs pending

Optimal metrology with programmable quantum sensors

Christian D. Marciniak, Denis V. Vasilyev, Ivan Pogorelov, Peter Zoller, Philipp Schindler, Rainer Blatt, Raphael Kaubruegger, Rick van Bijnen, Thomas Feldker, Thomas Monz

arxiv:2107.01860 v2 · 2021-07-05 · quant-ph · physics.atom-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{LDU2S7FDMGY32SOPHKZCSCCVXW}

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	2026-07-05T04:11:46.954348Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

58e9a97ca361b1bd49cf3ab2290855bdaea603d24092e258c24197d851a03640

Aliases

arxiv: 2107.01860 · arxiv_version: 2107.01860v2 · doi: 10.48550/arxiv.2107.01860 · pith_short_12: LDU2S7FDMGY3 · pith_short_16: LDU2S7FDMGY32SOP · pith_short_8: LDU2S7FD

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/LDU2S7FDMGY32SOPHKZCSCCVXW \
  | 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: 58e9a97ca361b1bd49cf3ab2290855bdaea603d24092e258c24197d851a03640

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4125959248ffd9a42d1785b83636b3074fa8a97bd192178cdcca37df3495a802",
    "cross_cats_sorted": [
      "physics.atom-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-07-05T08:30:12Z",
    "title_canon_sha256": "75fd51da265aee12aad4ea79f90d5383725121458a1c95c665816852c374a2ae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.01860",
    "kind": "arxiv",
    "version": 2
  }
}