Pith Number

pith:CM6FJPDQ

pith:2011:CM6FJPDQB4EFESRAPPLKTF7IXH

not attested not anchored not stored refs pending

High-accuracy optical clock based on the octupole transition in 171Yb+

B. Lipphardt, Chr. Tamm, E. Peik, M. Okhapkin, N. Huntemann, S. Weyers

arxiv:1111.2446 v2 · 2011-11-10 · 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{CM6FJPDQB4EFESRAPPLKTF7IXH}

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	2026-05-18T04:01:11.331849Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

133c54bc700f08524a207bd6a997e8b9e773ce526d8237b33c4813e130873b93

Aliases

arxiv: 1111.2446 · arxiv_version: 1111.2446v2 · doi: 10.48550/arxiv.1111.2446 · pith_short_12: CM6FJPDQB4EF · pith_short_16: CM6FJPDQB4EFESRA · pith_short_8: CM6FJPDQ

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/CM6FJPDQB4EFESRAPPLKTF7IXH \
  | 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: 133c54bc700f08524a207bd6a997e8b9e773ce526d8237b33c4813e130873b93

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e84dd4d88701e6f18fb4c8acff8353c67b5d9b17677148541252991df070ab04",
    "cross_cats_sorted": [
      "physics.optics",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2011-11-10T10:55:37Z",
    "title_canon_sha256": "6f502aca4c9ee53b62bdf0429e656cc5fc1ab8948996ec5b21094cb3f8fb9c4f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.2446",
    "kind": "arxiv",
    "version": 2
  }
}