Pith Number

pith:TMRNSHEG

pith:2012:TMRNSHEGWNJOLEY5QEK7ZRZX6U

not attested not anchored not stored refs pending

Laser locking to the 199Hg clock transition with 5.4x10^(-15)/sqrt(tau) fractional frequency instability

C. Mandache, D. V. Magalhaes, G. Santarelli, J. J. McFerran, J. Millo, S. Bize, W. Zhang, Y. Le Coq

arxiv:1205.4209 v2 · 2012-05-18 · physics.atom-ph · physics.optics

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TMRNSHEGWNJOLEY5QEK7ZRZX6U}

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	2026-05-18T01:16:53.742363Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9b22d91c86b352e5931d8115fcc737f5077b2fadefc66b6f4dfb96bb69b7ee11

Aliases

arxiv: 1205.4209 · arxiv_version: 1205.4209v2 · doi: 10.48550/arxiv.1205.4209 · pith_short_12: TMRNSHEGWNJO · pith_short_16: TMRNSHEGWNJOLEY5 · pith_short_8: TMRNSHEG

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/TMRNSHEGWNJOLEY5QEK7ZRZX6U \
  | 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: 9b22d91c86b352e5931d8115fcc737f5077b2fadefc66b6f4dfb96bb69b7ee11

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a6100c0422ac31e1316a67277a76393c7ff926e6db8447032841737c4aa32ee5",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2012-05-18T18:01:14Z",
    "title_canon_sha256": "b68da0f5bb32d9b714efe8450791b3bf6a51a91853ff9218eb4618ac48afc562"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.4209",
    "kind": "arxiv",
    "version": 2
  }
}