Pith Number

pith:OTKPPVHR

pith:2018:OTKPPVHRPUMG5BDFOQQMEZUT42

not attested not anchored not stored refs pending

Lifetime measurement of the $^{229}$Th nuclear isomer

Benedict Seiferle, Lars von der Wense, Peter G. Thirolf

arxiv:1801.05205 v1 · 2018-01-16 · nucl-ex

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OTKPPVHRPUMG5BDFOQQMEZUT42}

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	2026-05-18T00:25:47.522836Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74d4f7d4f17d186e84657420c26693e6ab0c8bc1d1b5d41a482ba4dd3ba3d693

Aliases

arxiv: 1801.05205 · arxiv_version: 1801.05205v1 · doi: 10.48550/arxiv.1801.05205 · pith_short_12: OTKPPVHRPUMG · pith_short_16: OTKPPVHRPUMG5BDF · pith_short_8: OTKPPVHR

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/OTKPPVHRPUMG5BDFOQQMEZUT42 \
  | 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: 74d4f7d4f17d186e84657420c26693e6ab0c8bc1d1b5d41a482ba4dd3ba3d693

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a61cbc38c94b6eafed78fbec9b697b553fe56a8462cfc2b12a8b92be6bd9ad83",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nucl-ex",
    "submitted_at": "2018-01-16T11:03:04Z",
    "title_canon_sha256": "0e4f5a1e08c6614e0800b4f0decb02d837b5864e599c24d1edc4b68c9448514d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.05205",
    "kind": "arxiv",
    "version": 1
  }
}