Pith Number

pith:3UNHDQTV

pith:2015:3UNHDQTVYTDCO35I7PYB25AO55

not attested not anchored not stored refs pending

Double Ionisation in R-Matrix Theory Using a 2-electron Outer Region

H.W. van der Hart, Jack Wragg, J.S. Parker

arxiv:1507.00893 v1 · 2015-07-03 · 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{3UNHDQTVYTDCO35I7PYB25AO55}

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	2026-05-18T01:35:29.620914Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd1a71c275c4c6276fa8fbf01d740eef77f2b6e377fc794dabd60eab18aec6d3

Aliases

arxiv: 1507.00893 · arxiv_version: 1507.00893v1 · doi: 10.48550/arxiv.1507.00893 · pith_short_12: 3UNHDQTVYTDC · pith_short_16: 3UNHDQTVYTDCO35I · pith_short_8: 3UNHDQTV

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/3UNHDQTVYTDCO35I7PYB25AO55 \
  | 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: dd1a71c275c4c6276fa8fbf01d740eef77f2b6e377fc794dabd60eab18aec6d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a2550e8039e39a3569187b6c8fd468d1dab74a030dd207bdda4b4d3aa58bdd14",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2015-07-03T12:38:59Z",
    "title_canon_sha256": "b58ba90d9938cd67954725c60fc1882d398644bcc1ade1342170657850fd0ade"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.00893",
    "kind": "arxiv",
    "version": 1
  }
}