Pith Number

pith:3I2L7MVQ

pith:2018:3I2L7MVQVM7KXLPXYUGPVZDFK4

not attested not anchored not stored refs pending

Nobelium energy levels and hyperfine structure constants

M.S. Safronova, S.G. Porsev, U.I. Safronova, V.A. Dzuba, V.V. Flambaum

arxiv:1810.07771 v1 · 2018-10-17 · 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{3I2L7MVQVM7KXLPXYUGPVZDFK4}

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	2026-05-17T23:59:04.533020Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

da34bfb2b0ab3eabadf7c50cfae46557193cc6c65c1c4e0c790e3add37bc413c

Aliases

arxiv: 1810.07771 · arxiv_version: 1810.07771v1 · doi: 10.48550/arxiv.1810.07771 · pith_short_12: 3I2L7MVQVM7K · pith_short_16: 3I2L7MVQVM7KXLPX · pith_short_8: 3I2L7MVQ

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/3I2L7MVQVM7KXLPXYUGPVZDFK4 \
  | 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: da34bfb2b0ab3eabadf7c50cfae46557193cc6c65c1c4e0c790e3add37bc413c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "60b9fc525f2a19680fc47b3a707a3a291d2b5c54d1398f7c077465bd55c3de7d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2018-10-17T20:22:56Z",
    "title_canon_sha256": "237ea02aaab731295a60fbeb99cbf20c12d892e62db79b5374d29914ba097da9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.07771",
    "kind": "arxiv",
    "version": 1
  }
}