Pith Number

pith:FIDNPCFO

pith:2012:FIDNPCFO6L7YQCYP5PGVNFNSJ7

not attested not anchored not stored refs pending

Positron attachment to the He doubly excited states

J. Mitroy, K. Varga, M. W. J. Bromley

arxiv:1202.4522 v2 · 2012-02-21 · 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{FIDNPCFO6L7YQCYP5PGVNFNSJ7}

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	2026-05-18T03:24:52.721153Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a06d788aef2ff880b0febcd5695b24fc726c9e933afec81c5fe1cf2df20edf0

Aliases

arxiv: 1202.4522 · arxiv_version: 1202.4522v2 · doi: 10.48550/arxiv.1202.4522 · pith_short_12: FIDNPCFO6L7Y · pith_short_16: FIDNPCFO6L7YQCYP · pith_short_8: FIDNPCFO

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/FIDNPCFO6L7YQCYP5PGVNFNSJ7 \
  | 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: 2a06d788aef2ff880b0febcd5695b24fc726c9e933afec81c5fe1cf2df20edf0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da54e67605f227a94e81843a035a2f96941fa63c4de609b1109f5e699df19531",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2012-02-21T03:58:22Z",
    "title_canon_sha256": "064ee035f861ae0809ea5aec57b251d55b6ab9c0e2a43ea7e904f54cec13acfc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.4522",
    "kind": "arxiv",
    "version": 2
  }
}