Pith Number

pith:MMJPW5VA

pith:2026:MMJPW5VAS33IPDSUUTMEQMK6ZY

not attested not anchored not stored refs pending

Thorium-229 in its Highest Charge States: Single-Ion Nuclear Clocks for Tests of Fundamental Interactions

C. Brandau, C. M. Heyl, I. Hartl, M. Vogel, P. Indelicato, P. Micke, R. X. Sch\"ussler, Th. St\"ohlker, Yu. A. Litvinov

arxiv:2608.08133 v1 · 2026-08-08 · 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{MMJPW5VAS33IPDSUUTMEQMK6ZY}

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	2026-08-11T01:21:47.210090Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6312fb76a096f6878e54a4d848315ece34f74e1477351aae88168607b81ecb0c

Aliases

arxiv: 2608.08133 · arxiv_version: 2608.08133v1 · doi: 10.48550/arxiv.2608.08133 · pith_short_12: MMJPW5VAS33I · pith_short_16: MMJPW5VAS33IPDSU · pith_short_8: MMJPW5VA

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/MMJPW5VAS33IPDSUUTMEQMK6ZY \
  | 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: 6312fb76a096f6878e54a4d848315ece34f74e1477351aae88168607b81ecb0c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c277e2be7f8bceb4bf90584e4c1833aafca83bfed880b6f1bf04c3bba5c74b89",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2026-08-08T13:40:32Z",
    "title_canon_sha256": "4da6b47048ea900354c74562d95498fc62cbff74307c733fbfc9cd8d24c943e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.08133",
    "kind": "arxiv",
    "version": 1
  }
}