Pith Number

pith:CIKXDU3L

pith:2018:CIKXDU3LTO76ZMOL57EAHHUWZC

not attested not anchored not stored refs pending

Sub-Doppler laser cooling of $^{39}$K via the 4S$\to$5P transition

Govind Unnikrishnan, Hanns-Christoph N\"agerl, Michael Gr\"obner

arxiv:1811.02185 v3 · 2018-11-06 · physics.atom-ph · 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{CIKXDU3LTO76ZMOL57EAHHUWZC}

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	2026-05-17T23:47:59.230423Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

121571d36b9bbfecb1cbefc8039e96c8b5e1ff08dade9e8153690637ffd7f4a7

Aliases

arxiv: 1811.02185 · arxiv_version: 1811.02185v3 · doi: 10.48550/arxiv.1811.02185 · pith_short_12: CIKXDU3LTO76 · pith_short_16: CIKXDU3LTO76ZMOL · pith_short_8: CIKXDU3L

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/CIKXDU3LTO76ZMOL57EAHHUWZC \
  | 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: 121571d36b9bbfecb1cbefc8039e96c8b5e1ff08dade9e8153690637ffd7f4a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0a6a0b87fa38cd1b475c2b68a98eb7a9057d29f53388d03ec69a32d255c1e58",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2018-11-06T06:35:49Z",
    "title_canon_sha256": "dc488faef1031fda1436694943a7b164c54dcddc604f157701bfe8d5da4ed76f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.02185",
    "kind": "arxiv",
    "version": 3
  }
}