Pith Number

pith:VNTCVRF2

pith:2019:VNTCVRF2TLO2WPP2BSCVVHTNBX

not attested not anchored not stored refs pending

Catching, trapping and in-situ-identification of thorium ions inside Coulomb crystals of $^{40}$Ca$^+$ ions

Christoph E. D\"ullmann, Dennis Renisch, Dmitry Budker, Felix Stopp, Ferdinand Schmidt-Kaler, Georg Jacob, J\"org Runke, Karin Groot-Berning, Petra Th\"orle-Pospiech, Raphael Haas

arxiv:1904.10262 v1 · 2019-04-23 · 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{VNTCVRF2TLO2WPP2BSCVVHTNBX}

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	2026-05-17T23:47:54.666843Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ab662ac4ba9addab3dfa0c855a9e6d0dd2ec18785d4c59d9a32fc7f9fbf927bd

Aliases

arxiv: 1904.10262 · arxiv_version: 1904.10262v1 · doi: 10.48550/arxiv.1904.10262 · pith_short_12: VNTCVRF2TLO2 · pith_short_16: VNTCVRF2TLO2WPP2 · pith_short_8: VNTCVRF2

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/VNTCVRF2TLO2WPP2BSCVVHTNBX \
  | 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: ab662ac4ba9addab3dfa0c855a9e6d0dd2ec18785d4c59d9a32fc7f9fbf927bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "33756f52b9556a1367ef970e574ee90b445f93c402279c434da014a88840021b",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2019-04-23T12:01:13Z",
    "title_canon_sha256": "d02b9a2ad8580e63bbe78ca68ddd0e85e3cddcd495b0510523cdd423efbf3226"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.10262",
    "kind": "arxiv",
    "version": 1
  }
}