Pith Number

pith:X22CFIDY

pith:2009:X22CFIDYIIOWI3VUIVLJLYQHVH

not attested not anchored not stored refs pending

Resonant effects on the two-photon emission from hydrogenic ions

A. Surzhykov, DFFCT), F. Parente (DFFCT), J. P. Santos (DFFCT), P. Amaro (LKB - Jussieu, Paul Indelicato (LKB - Jussieu)

arxiv:0904.0708 v1 · 2009-04-04 · 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{X22CFIDYIIOWI3VUIVLJLYQHVH}

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	2026-05-18T02:14:07.511603Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

beb422a078421d646eb4455695e207a9c3c7e01552cfabb35e63b000c2f7a07c

Aliases

arxiv: 0904.0708 · arxiv_version: 0904.0708v1 · doi: 10.48550/arxiv.0904.0708 · pith_short_12: X22CFIDYIIOW · pith_short_16: X22CFIDYIIOWI3VU · pith_short_8: X22CFIDY

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/X22CFIDYIIOWI3VUIVLJLYQHVH \
  | 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: beb422a078421d646eb4455695e207a9c3c7e01552cfabb35e63b000c2f7a07c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "61ead9deacedd43eec805985b1874fe5a08dee90ab82bae50380cef3bccf424c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2009-04-04T13:00:26Z",
    "title_canon_sha256": "af91676571e8b7c9bccf26082f22259a45dffec781ec6a9a9ee28b24510db047"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.0708",
    "kind": "arxiv",
    "version": 1
  }
}