Pith Number

pith:DO3JDHR5

pith:2015:DO3JDHR5SCJ4UGO27YSZZEEGMU

not attested not anchored not stored refs pending

Magic Wavelength for Hydrogen 1S-2S Transition

Akio Kawasaki

arxiv:1507.02466 v2 · 2015-07-09 · 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{DO3JDHR5SCJ4UGO27YSZZEEGMU}

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	2026-05-18T01:30:23.754835Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1bb6919e3d9093ca19dafe259c9086653ab1bbcb75800313a2579f98971a8794

Aliases

arxiv: 1507.02466 · arxiv_version: 1507.02466v2 · doi: 10.48550/arxiv.1507.02466 · pith_short_12: DO3JDHR5SCJ4 · pith_short_16: DO3JDHR5SCJ4UGO2 · pith_short_8: DO3JDHR5

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/DO3JDHR5SCJ4UGO27YSZZEEGMU \
  | 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: 1bb6919e3d9093ca19dafe259c9086653ab1bbcb75800313a2579f98971a8794

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d14052db007049e64eb7940c3ea70575a10ba61537732d535cc1959ed275b6f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2015-07-09T11:44:49Z",
    "title_canon_sha256": "c61e62b8ec4b0089d931ef96a00eeae62e3e8e9216d887445c3d8efdf5b96e2a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.02466",
    "kind": "arxiv",
    "version": 2
  }
}