Pith Number

pith:FCRE5LJ5

pith:2010:FCRE5LJ5XU5UUWF2P7ANJZ6AW6

not attested not anchored not stored refs pending

Theoretical energies of low-lying states of light helium-like ions

Krzysztof Pachucki, Vladimir A. Yerokhin

arxiv:1001.0406 v2 · 2010-01-03 · 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{FCRE5LJ5XU5UUWF2P7ANJZ6AW6}

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	2026-05-18T02:10:05.566429Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28a24ead3dbd3b4a58ba7fc0d4e7c0b79b80298794e57b224accbbdea3d89060

Aliases

arxiv: 1001.0406 · arxiv_version: 1001.0406v2 · doi: 10.48550/arxiv.1001.0406 · pith_short_12: FCRE5LJ5XU5U · pith_short_16: FCRE5LJ5XU5UUWF2 · pith_short_8: FCRE5LJ5

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/FCRE5LJ5XU5UUWF2P7ANJZ6AW6 \
  | 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: 28a24ead3dbd3b4a58ba7fc0d4e7c0b79b80298794e57b224accbbdea3d89060

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6770d1fc60583083b8048ff2222ea073cc2ee35f3729607cb5e054179a590c77",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2010-01-03T20:14:32Z",
    "title_canon_sha256": "8193ca0e960f2acbf754614393a27e1ae3bfe06b48295e97838ccd80a8c070f4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.0406",
    "kind": "arxiv",
    "version": 2
  }
}