Pith Number

pith:QJLBVLQQ

pith:2019:QJLBVLQQFDKSS5EDNX6QSLZFFV

not attested not anchored not stored refs pending

Precision frequency-comb terahertz spectroscopy on pure quantum states of a single molecular ion

Alejandra L. Collopy, Chin-wen Chou, Christoph Kurz, David. R. Leibrandt, Dietrich Leibfried, Michael E. Harding, Philipp N. Plessow, Scott Diddams, Tara Fortier, Yiheng Lin

arxiv:1911.12808 v1 · 2019-11-28 · physics.atom-ph · astro-ph.IM · 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{QJLBVLQQFDKSS5EDNX6QSLZFFV}

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	2026-07-05T00:56:39.356343Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82561aae1028d52974836dfd092f252d4d01966abfe92273de981972f95eed12

Aliases

arxiv: 1911.12808 · arxiv_version: 1911.12808v1 · doi: 10.48550/arxiv.1911.12808 · pith_short_12: QJLBVLQQFDKS · pith_short_16: QJLBVLQQFDKSS5ED · pith_short_8: QJLBVLQQ

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/QJLBVLQQFDKSS5EDNX6QSLZFFV \
  | 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: 82561aae1028d52974836dfd092f252d4d01966abfe92273de981972f95eed12

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa828a9c1b3995e98ec3dee0a5ab52703f3e17beef1906aa9d08bce6212accf9",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2019-11-28T17:51:20Z",
    "title_canon_sha256": "73822e9595d45d4ce767bca2fd735b1901ec9270b09308d4fe798a1c21457a06"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1911.12808",
    "kind": "arxiv",
    "version": 1
  }
}