Pith Number

pith:J72BVPTO

pith:2014:J72BVPTO4ZVCCYSSMQIQ2NBE3X

not attested not anchored not stored refs pending

Protected subspace Ramsey spectroscopy

Claudiu Genes, David Plankensteiner, Helmut Ritsch, Laurin Ostermann

arxiv:1407.8420 v2 · 2014-07-31 · physics.atom-ph · 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{J72BVPTO4ZVCCYSSMQIQ2NBE3X}

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	2026-05-18T01:42:26.751697Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ff41abe6ee66a21625264110d3424ddfa1aed2cc036d31fc03613d51dcf3f81

Aliases

arxiv: 1407.8420 · arxiv_version: 1407.8420v2 · doi: 10.48550/arxiv.1407.8420 · pith_short_12: J72BVPTO4ZVC · pith_short_16: J72BVPTO4ZVCCYSS · pith_short_8: J72BVPTO

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/J72BVPTO4ZVCCYSSMQIQ2NBE3X \
  | 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: 4ff41abe6ee66a21625264110d3424ddfa1aed2cc036d31fc03613d51dcf3f81

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca801934f545f66680d1bfeb37366c64b0b25135e9aa0a8d095c7e48814ee615",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2014-07-31T14:01:32Z",
    "title_canon_sha256": "fe63efa33da1206cdc3fc7d2baa62821b5c626af8baac503a50b461f0362c7a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.8420",
    "kind": "arxiv",
    "version": 2
  }
}