Pith Number

pith:URQEKD4Q

pith:2005:URQEKD4QPWSXP2EJ23AFMDWPGN

not attested not anchored not stored refs pending

The rotational temperature of polar molecular ions in Coulomb crystals

Anders Bertelsen, Michael Drewsen, Solvejg J{\o}rgensen

arxiv:physics/0504128 v2 · 2005-04-19 · physics.chem-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{URQEKD4QPWSXP2EJ23AFMDWPGN}

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	2026-05-18T01:38:07.781709Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a460450f907da577e889d6c0560ecf33414fd36b9b74badf63c0ea47ba7c2c73

Aliases

arxiv: physics/0504128 · arxiv_version: physics/0504128v2 · doi: 10.48550/arxiv.physics/0504128 · pith_short_12: URQEKD4QPWSX · pith_short_16: URQEKD4QPWSXP2EJ · pith_short_8: URQEKD4Q

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/URQEKD4QPWSXP2EJ23AFMDWPGN \
  | 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: a460450f907da577e889d6c0560ecf33414fd36b9b74badf63c0ea47ba7c2c73

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "513be5063a3bccc758918eadb38ee9baf04d1d9e0f33cb56e597b7ae6c9f16db",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2005-04-19T08:45:55Z",
    "title_canon_sha256": "264e0222410ed65a2b685448a239857ab6b5b4e941600680fbf9fd9c141949d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0504128",
    "kind": "arxiv",
    "version": 2
  }
}