Pith Number

pith:EM4JWB6N

pith:2009:EM4JWB6NDSGGNU7IXNZEFPSJC7

not attested not anchored not stored refs pending

Sub-hertz frequency stabilization of a commercial diode laser

F. Lison, G. Schuricht, J. Stuhler, J. Zhang, L. J. Wang, Y. N. Zhao, Z. H. Lu

arxiv:0904.4056 v1 · 2009-04-26 · 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{EM4JWB6NDSGGNU7IXNZEFPSJC7}

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	2026-05-18T02:13:57.240406Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

23389b07cd1c8c66d3e8bb7242be4917f911a5a1f317297173c7f5e3642719fd

Aliases

arxiv: 0904.4056 · arxiv_version: 0904.4056v1 · doi: 10.48550/arxiv.0904.4056 · pith_short_12: EM4JWB6NDSGG · pith_short_16: EM4JWB6NDSGGNU7I · pith_short_8: EM4JWB6N

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/EM4JWB6NDSGGNU7IXNZEFPSJC7 \
  | 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: 23389b07cd1c8c66d3e8bb7242be4917f911a5a1f317297173c7f5e3642719fd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d3953d1fec2f15a7a27c642746c6551cce28300b742f80e60d1f6247fc9ae3a7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2009-04-26T20:20:28Z",
    "title_canon_sha256": "5804098e641157e69515f12c2975c779b1cb7ec910b40cf77e0356883f1ef040"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.4056",
    "kind": "arxiv",
    "version": 1
  }
}