Pith Number

pith:2SOEZDK3

pith:2019:2SOEZDK3CGWPKCMFA6F65PA6AN

not attested not anchored not stored refs pending

Structure of the Balmer jump. The isolated hydrogen atom

Flavio Calvo, Luca Belluzzi, Oskar Steiner

arxiv:1901.10241 v1 · 2019-01-29 · 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{2SOEZDK3CGWPKCMFA6F65PA6AN}

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	2026-05-17T23:55:15.769027Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d49c4c8d5b11acf50985078beebc1e0365120677637eef1fe74e6e4c0b6dffc9

Aliases

arxiv: 1901.10241 · arxiv_version: 1901.10241v1 · doi: 10.48550/arxiv.1901.10241 · pith_short_12: 2SOEZDK3CGWP · pith_short_16: 2SOEZDK3CGWPKCMF · pith_short_8: 2SOEZDK3

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/2SOEZDK3CGWPKCMFA6F65PA6AN \
  | 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: d49c4c8d5b11acf50985078beebc1e0365120677637eef1fe74e6e4c0b6dffc9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f73bc6f5dd3b6202b8b5e008dd7bd411f994f400289114929a3616fb7e2c74f3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2019-01-29T12:02:51Z",
    "title_canon_sha256": "49fcaeb752a91033ac0faa1fdee9072a29e21acc6e89ea3afbed801786431ceb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.10241",
    "kind": "arxiv",
    "version": 1
  }
}