Pith Number

pith:GYBEA26O

pith:2008:GYBEA26OAA6XEVM3CX7AZUVSWE

not attested not anchored not stored refs pending

Determination of the fine structure constant with atom interferometry and Bloch oscillations

Catherine Schwob (LKB - Jussieu), Estefania De Mirandes (LKB - Jussieu), Fran\c{c}ois Biraben (LKB - Jussieu), Fran\c{c}ois Nez (LKB - Jussieu), Lucile Julien (LKB - Jussieu), Malo Cadoret (LKB - Jussieu), Pierre Clad\'e (LKB - Jussieu), Sa\"ida Guellati-Kh\'elifa (BNM-INM)

arxiv:0812.3139 v1 · 2008-12-16 · 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{GYBEA26OAA6XEVM3CX7AZUVSWE}

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	2026-05-18T00:37:05.953199Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3602406bce003d72559b15fe0cd2b2b12b46a9a6777cf4e06bcd8d6dca4856b9

Aliases

arxiv: 0812.3139 · arxiv_version: 0812.3139v1 · doi: 10.48550/arxiv.0812.3139 · pith_short_12: GYBEA26OAA6X · pith_short_16: GYBEA26OAA6XEVM3 · pith_short_8: GYBEA26O

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/GYBEA26OAA6XEVM3CX7AZUVSWE \
  | 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: 3602406bce003d72559b15fe0cd2b2b12b46a9a6777cf4e06bcd8d6dca4856b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82d2898291b49a5a8abbfd4d98df3a688f6d4a0cfe854c5367a28d1d5e923bfe",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2008-12-16T20:17:52Z",
    "title_canon_sha256": "5471be02bb8732f8ec40b9713ef1a05e05affca70974dd7e22b3e5a2b23eeb3b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0812.3139",
    "kind": "arxiv",
    "version": 1
  }
}