Pith Number

pith:GTFOBCB4

pith:2013:GTFOBCB4IHM7JHKDACPNEACX4G

not attested not anchored not stored refs pending

Efficient atomic clocks operated with several atomic ensembles

Anders S. S{\o}rensen, Johannes Borregaard

arxiv:1304.5944 v3 · 2013-04-22 · quant-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{GTFOBCB4IHM7JHKDACPNEACX4G}

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	2026-05-18T02:40:47.572775Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

34cae0883c41d9f49d43009ed20057e1a07ec8b539f23e83974bad1f5d4cc7e3

Aliases

arxiv: 1304.5944 · arxiv_version: 1304.5944v3 · doi: 10.48550/arxiv.1304.5944 · pith_short_12: GTFOBCB4IHM7 · pith_short_16: GTFOBCB4IHM7JHKD · pith_short_8: GTFOBCB4

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/GTFOBCB4IHM7JHKDACPNEACX4G \
  | 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: 34cae0883c41d9f49d43009ed20057e1a07ec8b539f23e83974bad1f5d4cc7e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "91752a3c2c1b4b313a65099c3ec74eb47cdbe9e914293842ebb9ffbce78a8d66",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-04-22T13:22:31Z",
    "title_canon_sha256": "645d8637560c626e4c0595935f76975d260cf30f4305c0f2f610ce9b099bf6fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.5944",
    "kind": "arxiv",
    "version": 3
  }
}