Pith Number

pith:4J5YCZK7

pith:2018:4J5YCZK72TU6UNJBBMIB3PUEYB

not attested not anchored not stored refs pending

Low-drift Zeeman shifted atomic frequency reference

C. S. Adams, D. J. Reed, D. J. Whiting, J. M. Kondo, K. J. Weatherill, N. \v{S}ibali\'c

arxiv:1804.07928 v3 · 2018-04-21 · 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{4J5YCZK72TU6UNJBBMIB3PUEYB}

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	2026-05-18T00:05:39.083096Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e27b81655fd4e9ea35210b101dbe84c07fadda25beb4b81ac2b31acaf3148fe7

Aliases

arxiv: 1804.07928 · arxiv_version: 1804.07928v3 · doi: 10.48550/arxiv.1804.07928 · pith_short_12: 4J5YCZK72TU6 · pith_short_16: 4J5YCZK72TU6UNJB · pith_short_8: 4J5YCZK7

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/4J5YCZK72TU6UNJBBMIB3PUEYB \
  | 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: e27b81655fd4e9ea35210b101dbe84c07fadda25beb4b81ac2b31acaf3148fe7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "68f2ae66b1bfcec78df38859643d1f6d7c2b6c1eafde018a75212e271976bdd2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2018-04-21T09:45:21Z",
    "title_canon_sha256": "2bd3ddeb9ca29f555a511ff3633d66d64cd950f3ecaeaa465ee27e5f59531103"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.07928",
    "kind": "arxiv",
    "version": 3
  }
}