Pith Number

pith:PV3NBEBF

pith:2008:PV3NBEBFGDLZZAPRREPKVGBIDX

not attested not anchored not stored refs pending

Variation of the Fine-Structure Constant and Laser Cooling of Atomic Dysprosium

A. Cing\"oz, A. Lapierre, A.-T Nguyen, D. Budker, J. R. Torgerson, N. A. Leefer, S. J. Ferrell, S. K. Lamoreaux, V. V. Yashchuk

arxiv:0811.3992 v2 · 2008-11-24 · 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{PV3NBEBFGDLZZAPRREPKVGBIDX}

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	2026-05-18T00:37:38.732480Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d76d0902530d79c81f1891eaa98281dc2a4e8aaefc789232bcd57513636ec55

Aliases

arxiv: 0811.3992 · arxiv_version: 0811.3992v2 · doi: 10.48550/arxiv.0811.3992 · pith_short_12: PV3NBEBFGDLZ · pith_short_16: PV3NBEBFGDLZZAPR · pith_short_8: PV3NBEBF

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/PV3NBEBFGDLZZAPRREPKVGBIDX \
  | 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: 7d76d0902530d79c81f1891eaa98281dc2a4e8aaefc789232bcd57513636ec55

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7421f7d863c68b1ab329fd720e07ea7658b684078aa4bb1f9ec2dfe4a73fdf07",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2008-11-24T23:07:23Z",
    "title_canon_sha256": "ed7f80e72d918fa03ed33b508bf8bdde14b78a7580080f5c84748fc0a7e91490"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0811.3992",
    "kind": "arxiv",
    "version": 2
  }
}