Pith Number

pith:UZFQ4E4T

pith:2009:UZFQ4E4TXZEVEHMVCU6XVJQU4T

not attested not anchored not stored refs pending

Negative continuum effects on the two-photon decay rates of hydrogen-like ions

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

arxiv:0908.2498 v1 · 2009-08-18 · 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{UZFQ4E4TXZEVEHMVCU6XVJQU4T}

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	2026-05-18T02:12:25.721855Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a64b0e1393be49521d95153d7aa614e4ed91e2df18e86f88fdba3debdf833ae0

Aliases

arxiv: 0908.2498 · arxiv_version: 0908.2498v1 · doi: 10.48550/arxiv.0908.2498 · pith_short_12: UZFQ4E4TXZEV · pith_short_16: UZFQ4E4TXZEVEHMV · pith_short_8: UZFQ4E4T

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/UZFQ4E4TXZEVEHMVCU6XVJQU4T \
  | 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: a64b0e1393be49521d95153d7aa614e4ed91e2df18e86f88fdba3debdf833ae0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7fc324935451d5186e0c9c635f6bac6d3ed4f4bf8d4e8167635750ccf1289f6d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2009-08-18T06:49:40Z",
    "title_canon_sha256": "d5bafdb73cec957a6493230ef83bb9614c0a34a19b85daafb44f6ceaf443e8ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.2498",
    "kind": "arxiv",
    "version": 1
  }
}