Pith Number

pith:SIA3NXKC

pith:2021:SIA3NXKCPFLLXR53K5EUNFD5OT

not attested not anchored not stored refs pending

Robust Polarization Gradient Cooling of Trapped Ions

Christoph E. D\"ullmann, Dmitry Budker, Ferdinand Schmidt-Kaler, Lukas Klein, Sebastian Wolf, Wenbing Li

arxiv:2109.00575 v2 · 2021-09-01 · 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{SIA3NXKCPFLLXR53K5EUNFD5OT}

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	2026-07-05T04:09:57.512776Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9201b6dd427956bbc7bb574946947d74e4859b7771d529269ffd308c1cfbb563

Aliases

arxiv: 2109.00575 · arxiv_version: 2109.00575v2 · doi: 10.48550/arxiv.2109.00575 · pith_short_12: SIA3NXKCPFLL · pith_short_16: SIA3NXKCPFLLXR53 · pith_short_8: SIA3NXKC

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/SIA3NXKCPFLLXR53K5EUNFD5OT \
  | 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: 9201b6dd427956bbc7bb574946947d74e4859b7771d529269ffd308c1cfbb563

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ffc95d1a997a23d325e59175e815e8436cebb84ea8718511733a7b1450c34440",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2021-09-01T19:05:36Z",
    "title_canon_sha256": "23adf0d8abe3080808c4da5b6f1ec950b1df20acce23d4e0fd13fe0a31e5f567"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.00575",
    "kind": "arxiv",
    "version": 2
  }
}