Pith Number

pith:BQU5QXRO

pith:2014:BQU5QXROUQ557KRLK2FS4QJH7W

not attested not anchored not stored refs pending

Highly-charged ions for atomic clocks, quantum information, and search for $\alpha$-variation

M. G. Kozlov, M. S. Safronova, S. G. Porsev, U. I. Safronova, V. A. Dzuba, V. V. Flambaum

arxiv:1405.4271 v1 · 2014-05-16 · physics.atom-ph · physics.optics · 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{BQU5QXROUQ557KRLK2FS4QJH7W}

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	2026-05-18T01:43:11.540202Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c29d85e2ea43bdfaa2b568b2e4127fda50c54f0e2ce12f4b5b7a394b8fb5c6c

Aliases

arxiv: 1405.4271 · arxiv_version: 1405.4271v1 · doi: 10.48550/arxiv.1405.4271 · pith_short_12: BQU5QXROUQ55 · pith_short_16: BQU5QXROUQ557KRL · pith_short_8: BQU5QXRO

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/BQU5QXROUQ557KRLK2FS4QJH7W \
  | 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: 0c29d85e2ea43bdfaa2b568b2e4127fda50c54f0e2ce12f4b5b7a394b8fb5c6c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a649a289b835393a96905578281d9377880d430298c7513855fb47c1daa4c8e3",
    "cross_cats_sorted": [
      "physics.optics",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2014-05-16T18:55:27Z",
    "title_canon_sha256": "13d2bbca279cf8afb369cbb2ad72fcbe99eca88378b8daf2087c7a877b13b4fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.4271",
    "kind": "arxiv",
    "version": 1
  }
}