Pith Number

pith:MPF3OI6W

pith:2002:MPF3OI6WIQME7OP6FJNCWAIGU7

not attested not anchored not stored refs pending

Testing the stability of fundamental constants with the 199Hg+ single-ion optical clock

C. E. Tanner, D. J. Wineland, J. C. Bergquist, L. Hollberg, R. E. Drullinger, S. A. Diddams, S. Bize, S. R. Jefferts, T. E. Parker, T. P. Heavner, U. Tanaka, W. H. Oskay, W. M. Itano

arxiv:physics/0212109 v1 · 2002-12-31 · physics.atom-ph · physics.gen-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{MPF3OI6WIQME7OP6FJNCWAIGU7}

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

The Confrontation between General Relativity and Experiment

Receipt and verification

First computed	2026-07-04T16:35:57.711806Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

63cbb723d644184fb9fe2a5a2b0106a7d0d5a6d6dde1d8ae005864f46a86e30f

Aliases

arxiv: physics/0212109 · arxiv_version: physics/0212109v1 · doi: 10.48550/arxiv.physics/0212109 · pith_short_12: MPF3OI6WIQME · pith_short_16: MPF3OI6WIQME7OP6 · pith_short_8: MPF3OI6W

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/MPF3OI6WIQME7OP6FJNCWAIGU7 \
  | 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: 63cbb723d644184fb9fe2a5a2b0106a7d0d5a6d6dde1d8ae005864f46a86e30f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c5147ae7d261738d341a2e3862096ac0e4ad938a6fe3279ca3fdce5b3d20c81",
    "cross_cats_sorted": [
      "physics.gen-ph"
    ],
    "license": "",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2002-12-31T00:51:14Z",
    "title_canon_sha256": "f226bc4a88ba65081b4adc23f151e949e3abda291487386c40a3565cecb221be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0212109",
    "kind": "arxiv",
    "version": 1
  }
}