Pith Number

pith:E7CZ6TOF

pith:2015:E7CZ6TOFC7IS47ELRYKSYV57QK

not attested not anchored not stored refs pending

Strontium optical lattice clocks for practical realization of the metre and secondary representation of the second

A. Cygan, C. Radzewicz, D. Bartoszek-Bober, D. Lisak, F. Ozimek, J. Zachorowski, K. Bielska, M. Bober, M. Piotrowski, M. Piwi\'nski, M. Prymaczek, M. Zawada, P. Ablewski, P. Mas{\l}owski, P. Morzy\'nski, P. Wcis{\l}o, R. Ciury{\l}o, R. Trawi\'nski, S. W\'ojtewicz, W. Gawlik

arxiv:1506.04680 v1 · 2015-06-15 · 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{E7CZ6TOFC7IS47ELRYKSYV57QK}

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	2026-05-18T01:49:25.214332Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

27c59f4dc517d12e7c8b8e152c57bf829b39376ca7c634c07dd6abf756438730

Aliases

arxiv: 1506.04680 · arxiv_version: 1506.04680v1 · doi: 10.48550/arxiv.1506.04680 · pith_short_12: E7CZ6TOFC7IS · pith_short_16: E7CZ6TOFC7IS47EL · pith_short_8: E7CZ6TOF

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/E7CZ6TOFC7IS47ELRYKSYV57QK \
  | 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: 27c59f4dc517d12e7c8b8e152c57bf829b39376ca7c634c07dd6abf756438730

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d5cbb1bcf35e2cc42475df02d6c72a4b896f2d608254f67a50c5decacf3e6bf8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2015-06-15T17:34:22Z",
    "title_canon_sha256": "615bbe750fa08ca8cf6d569c4c2b85cec9035349130a1f58d8a19524352c0498"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.04680",
    "kind": "arxiv",
    "version": 1
  }
}