Pith Number

pith:DDPI3OVK

pith:2021:DDPI3OVKIZW3RRWZPT3DWIWLFJ

not attested not anchored not stored refs pending

Measuring the stability of fundamental constants with a network of clocks

A. C. Harwood, A. O. Parsons, A. Tofful, A. Vecchio, B. Darquie, B. E. Sauer, B. I. Robertson, C. Mayo, E. A. Curtis, E. M. Forgan, F. Butuc-Mayer, F. Kuipers, G. Barontini, H. S. Margolis, I. R. Hill, J. Dunningham, J. Goldwin, J. R. Crespo Lopez-Urrutia, J. Rodewald, J. Tunesi, K. Georgiou, K. Szymaniec, L. Blackburn, L. P. Kozhiparambil Sajith, L. Prokhorov, M. Jeong, M. Keller, M. R. Tarbutt, M. Schioppo, M. S. Safronova, M. Y. H. Johnson, N. J. Fitch, N. Sherrill, P. Gill, P. Newman, R. C. Thompson, R. J. Hendricks, R. M. Godun, S. Worm, V. Boyer, V. Guarrera, X. Calmet, Y. V. Stadnik, Y. Wang

arxiv:2112.10618 v2 · 2021-12-20 · hep-ph · astro-ph.CO · gr-qc · hep-ex · 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{DDPI3OVKIZW3RRWZPT3DWIWLFJ}

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.

Cited by

1 paper in Pith

Running Vacuum in the expanding Universe: a unified QFT paradigm for Inflation and Dark Energy

Receipt and verification

First computed	2026-07-05T04:22:18.936943Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18de8dbaaa466db8c6d97cf63b22cb2a444a6e333e7c30c3015431d4e7444a9f

Aliases

arxiv: 2112.10618 · arxiv_version: 2112.10618v2 · doi: 10.48550/arxiv.2112.10618 · pith_short_12: DDPI3OVKIZW3 · pith_short_16: DDPI3OVKIZW3RRWZ · pith_short_8: DDPI3OVK

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/DDPI3OVKIZW3RRWZPT3DWIWLFJ \
  | 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: 18de8dbaaa466db8c6d97cf63b22cb2a444a6e333e7c30c3015431d4e7444a9f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "49e134668f1de027f6c007ce841a0529bcbd01e69be978d58388df2f3daa2ef2",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "gr-qc",
      "hep-ex",
      "physics.atom-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2021-12-20T15:31:35Z",
    "title_canon_sha256": "a14a666b6c97135f126953d19d3312fd8e3f640ae1c73ef4be9fd56258a24d8a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.10618",
    "kind": "arxiv",
    "version": 2
  }
}