Pith Number

pith:3JKEI5YP

pith:2013:3JKEI5YPKGCZIJHOZ66D6Z2QDJ

not attested not anchored not stored refs pending

Efficient Direct Evaporative Cooling in an Atom Chip Magnetic Trap

Dana Z. Anderson, Daniel M. Farkas, Kai M. Hudek, Shengwang Du

arxiv:1305.5556 v2 · 2013-05-23 · physics.atom-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{3JKEI5YPKGCZIJHOZ66D6Z2QDJ}

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	2026-05-18T01:49:47.096076Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

da5444770f51859424eecfbc3f67501a6f54c18133dd18b51812215828b18922

Aliases

arxiv: 1305.5556 · arxiv_version: 1305.5556v2 · doi: 10.48550/arxiv.1305.5556 · pith_short_12: 3JKEI5YPKGCZ · pith_short_16: 3JKEI5YPKGCZIJHO · pith_short_8: 3JKEI5YP

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/3JKEI5YPKGCZIJHOZ66D6Z2QDJ \
  | 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: da5444770f51859424eecfbc3f67501a6f54c18133dd18b51812215828b18922

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "56770880b52fec40074de0106c183e9a0e52b88382ef5f9e2525d5d6fbb8586e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2013-05-23T20:23:02Z",
    "title_canon_sha256": "222d5ebea01dc6586459e8378cc1d410268d6a0aadc115554dd40faf2ea89903"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.5556",
    "kind": "arxiv",
    "version": 2
  }
}