Pith Number

pith:7Z5FF3RG

pith:2000:7Z5FF3RGCECWHOS2MXCIEG76CT

not attested not anchored not stored refs pending

Classical double ionization of atoms in strong fields

Bruno Eckhardt, Krzysztof Sacha

arxiv:physics/0005079 v1 · 2000-05-29 · physics.atom-ph · nlin.CD

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7Z5FF3RGCECWHOS2MXCIEG76CT}

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	2026-07-04T14:43:15.465422Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe7a52ee26110563ba5a65c4821bfe14c8fe2dc5c86aadc8737126907bf25784

Aliases

arxiv: physics/0005079 · arxiv_version: physics/0005079v1 · doi: 10.48550/arxiv.physics/0005079 · pith_short_12: 7Z5FF3RGCECW · pith_short_16: 7Z5FF3RGCECWHOS2 · pith_short_8: 7Z5FF3RG

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/7Z5FF3RGCECWHOS2MXCIEG76CT \
  | 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: fe7a52ee26110563ba5a65c4821bfe14c8fe2dc5c86aadc8737126907bf25784

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e4f879d222d59f79ca201830cc4a28f7cebc9241f3409a7531eba2e2707c7ba",
    "cross_cats_sorted": [
      "nlin.CD"
    ],
    "license": "",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2000-05-29T16:24:24Z",
    "title_canon_sha256": "f4ec1f9692b892ee35ad969967f8c5fb7e1a95783a06cb797111d6edbb231e11"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0005079",
    "kind": "arxiv",
    "version": 1
  }
}