Pith Number

pith:5OEGCOZA

pith:2020:5OEGCOZAW2ULZZXKE4U6POUAXB

not attested not anchored not stored refs pending

Generating 500 mW for laser cooling of strontium atoms by injection locking a high power laser diode

Jason R. Williams, Nan Yu, Vladimir Schkolnik

arxiv:2004.11732 v1 · 2020-04-24 · 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{5OEGCOZAW2ULZZXKE4U6POUAXB}

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	2026-07-05T00:57:57.298570Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eb88613b20b6a8bce6ea2729e7ba80b860b3f079671fcc9a82d51a864cddcbc7

Aliases

arxiv: 2004.11732 · arxiv_version: 2004.11732v1 · doi: 10.48550/arxiv.2004.11732 · pith_short_12: 5OEGCOZAW2UL · pith_short_16: 5OEGCOZAW2ULZZXK · pith_short_8: 5OEGCOZA

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/5OEGCOZAW2ULZZXKE4U6POUAXB \
  | 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: eb88613b20b6a8bce6ea2729e7ba80b860b3f079671fcc9a82d51a864cddcbc7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c18f8614cc61efaeaa6dd9a56bd23c3a8ff0c6ccf9450d3db06fee7bc99994a",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2020-04-24T13:18:11Z",
    "title_canon_sha256": "80cb10fdd0927dd4b5ba1371bd107e65aa883d77f879d6b5971474ed8f2aad03"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.11732",
    "kind": "arxiv",
    "version": 1
  }
}