Pith Number

pith:RQEFMTNY

pith:2025:RQEFMTNYEKUFG3FFGGJ5XD2UTU

not attested not anchored not stored refs pending

Coordinated international comparisons between optical clocks connected via fiber and satellite links

10), (10) LUH Germany, (2) INRIM Italy, (3) NPL United Kingdom, (4) LNE-OP France, (5) NMIJ Japan, 6), (6) YNU Japan, (7) LPL France, (8) PTB Germany, (9) IfE LUH Germany, Adam O. Parsons (3), Akiko Nishiyama (5), Alberto Mura (2), Alexander Kuhl (8), Alexandra Tofful (3), Anders E. Wallin (1), Anne Amy-Klein (7), Benjamin Pointard (4), Billy I. Robertson (3), BIPM France), Burghard Lipphardt (8), Cecilia Clivati (2), Chen-Hao Feng (3), Christian Chardonnet (7), Christian Lisdat (8), Daisuke Akamatsu (5, Dang-Bao-An Tran (3), Davide Calonico (2), E. Anne Curtis (3), Elena Cantoni (2), Erik Benkler (8), Etienne Cantin (7), Filippo Levi (2), G\'erard Petit (11), Giancarlo Cerretto (2), Haosen Shang (4), Heiner Denker (9), Helen S. Margolis (3) ((1) VTT Finland, H. Nimrod Hausser (8), Hongli Liu (8), Ian R. Hill (3), Irene Goti (2), Jacob Tunesi (3), J\'er\^ome Lodewyck (4), Jonas Keller (8), Joshua Klose (8), Kalle Hanhij\"arvi (1), Kazumoto Hosaka (5), Kilian Stahl (8), Mads T{\o}nnes (4), Marco Pizzocaro (2), Marco Schioppo (3), Martin Steinel (8), Matias Risaro (2), Matthew Y.H. Johnson (3), Maxime Mazouth-Laurol (4), Melina Filzinger (8), Michel Abgrall (4), Miguel Angel Cifuentes Marin (4), Nils Huntemann (8), Nishant M. Bhatt (8), Olivier Lopez (7), Paul-Eric Pottie (4), Rachel M. Godun (3), Rodolphe Le Targat (4), Sebastian Koke (8), Simone Donadello (2), S\"oren D\"orscher (8), Stefano Condio (2), Tabea Nordmann (8), Takumi Kobayashi (5), Tanja E. Mehlst\"aubler (8, Thomas Fordell (1), Thomas Legero (8), Thomas Lindvall (1), Uwe Sterr (8)

arxiv:2505.06763 v1 · 2025-05-10 · 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{RQEFMTNYEKUFG3FFGGJ5XD2UTU}

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	2026-07-05T11:30:23.006629Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c08564db822a8536ca53193db8f549d126521cf161f7276d86382e4333089b3

Aliases

arxiv: 2505.06763 · arxiv_version: 2505.06763v1 · doi: 10.48550/arxiv.2505.06763 · pith_short_12: RQEFMTNYEKUF · pith_short_16: RQEFMTNYEKUFG3FF · pith_short_8: RQEFMTNY

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/RQEFMTNYEKUFG3FFGGJ5XD2UTU \
  | 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: 8c08564db822a8536ca53193db8f549d126521cf161f7276d86382e4333089b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a9eb3ec4271c2c0f65abd8280a33c0b491db5e81a0d5598129ba7da1a5a022a2",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2025-05-10T21:51:14Z",
    "title_canon_sha256": "bf26d4b3da9ccecfc03c79c2f1982a4744ab1edb2af5bf3170687c056224f95a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.06763",
    "kind": "arxiv",
    "version": 1
  }
}