pith. sign in
Pith Number

pith:PXC6RNUT

pith:2016:PXC6RNUTEHP4CBC6PM2AGR7R2L
not attested not anchored not stored refs pending

The USNO rubidium fountains

Christopher R. Ekstrom, James Hanssen, Jennifer Taylor, Steven Peil, Thomas B. Swanson

arxiv:1607.06776 v1 · 2016-07-22 · physics.atom-ph

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{PXC6RNUTEHP4CBC6PM2AGR7R2L}

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 2026-05-18T01:10:39.139264Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

7dc5e8b69321dfc1045e7b340347f1d2eef6b31a436bbb6d590275ac85a7c17e

Aliases

arxiv: 1607.06776 · arxiv_version: 1607.06776v1 · doi: 10.48550/arxiv.1607.06776 · pith_short_12: PXC6RNUTEHP4 · pith_short_16: PXC6RNUTEHP4CBC6 · pith_short_8: PXC6RNUT
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/PXC6RNUTEHP4CBC6PM2AGR7R2L \
  | 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: 7dc5e8b69321dfc1045e7b340347f1d2eef6b31a436bbb6d590275ac85a7c17e
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "de6b4a394302d209f3a60ea1adc9f75dd0e103102bcbf4b04423e29cf881cf55",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2016-07-22T18:08:53Z",
    "title_canon_sha256": "32b4769f23adabc5131e5d137cd7b380fdf178e73ccee15074faa02a4d8217a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.06776",
    "kind": "arxiv",
    "version": 1
  }
}