Pith Number

pith:NALJPWC3

pith:2012:NALJPWC3YHX4VYZEHU7PX3CIDS

not attested not anchored not stored refs pending

Blackbody radiation shift in the Sr optical atomic clock

Charles W. Clark, M. G. Kozlov, M. S. Safronova, S. G. Porsev, U. I. Safronova

arxiv:1210.7272 v1 · 2012-10-26 · 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{NALJPWC3YHX4VYZEHU7PX3CIDS}

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	2026-05-18T01:53:36.889147Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

681697d85bc1efcae3243d3efbec481ca816cebba82fdf13e0ba9f50bf27bae2

Aliases

arxiv: 1210.7272 · arxiv_version: 1210.7272v1 · doi: 10.48550/arxiv.1210.7272 · pith_short_12: NALJPWC3YHX4 · pith_short_16: NALJPWC3YHX4VYZE · pith_short_8: NALJPWC3

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/NALJPWC3YHX4VYZEHU7PX3CIDS \
  | 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: 681697d85bc1efcae3243d3efbec481ca816cebba82fdf13e0ba9f50bf27bae2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b9f25859c914f891085dcf8c85576a94bb889052ca8be406cb9460fcf23e8670",
    "cross_cats_sorted": [
      "physics.optics",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2012-10-26T23:47:50Z",
    "title_canon_sha256": "e8988b027a692f37de69f6389eb89b3217a3b47941c5e78fc2a05fa0b7dd1b6f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.7272",
    "kind": "arxiv",
    "version": 1
  }
}