Pith Number

pith:FP3Y3AJV

pith:2015:FP3Y3AJV3PJMH2PKCMNEWW5GA5

not attested not anchored not stored refs pending

Realization of a time-scale with an accurate optical lattice clock

A. Al-Masoudi, B. Lipphardt, C. Grebing, C. Lisdat, F. Riehle, S. D\"orscher, S. H\"afner, S. Weyers, U. Sterr, V. Gerginov

arxiv:1511.03888 v2 · 2015-11-12 · physics.optics · physics.atom-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FP3Y3AJV3PJMH2PKCMNEWW5GA5}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:12:00.263533Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2bf78d8135dbd2c3e9ea131a4b5ba607668f6c2e8c78a31234b29d25938dd68e

Aliases

arxiv: 1511.03888 · arxiv_version: 1511.03888v2 · doi: 10.48550/arxiv.1511.03888 · pith_short_12: FP3Y3AJV3PJM · pith_short_16: FP3Y3AJV3PJMH2PK · pith_short_8: FP3Y3AJV

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/FP3Y3AJV3PJMH2PKCMNEWW5GA5 \
  | 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: 2bf78d8135dbd2c3e9ea131a4b5ba607668f6c2e8c78a31234b29d25938dd68e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "074aaebe0544e4546aafaf2fca15132b37cd17d31b96ac683af54baf0a867e09",
    "cross_cats_sorted": [
      "physics.atom-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2015-11-12T13:28:57Z",
    "title_canon_sha256": "4ba32335a938257773a29b5d3f144b246fd64e4824ce522faaee5ba48d0332bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.03888",
    "kind": "arxiv",
    "version": 2
  }
}