Pith Number

pith:JP4D3KO2

pith:2012:JP4D3KO2HMG6YMW5TCQXNHWBJU

not attested not anchored not stored refs pending

Theory of NMR chemical shift in an electronic state with arbitrary degeneracy

Alessandro Soncini, Willem Van den Heuvel

arxiv:1204.4980 v2 · 2012-04-23 · physics.chem-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{JP4D3KO2HMG6YMW5TCQXNHWBJU}

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	2026-05-18T03:39:52.985127Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4bf83da9da3b0dec32dd98a1769ec14d26f006d51999a85595a0b299fed215a9

Aliases

arxiv: 1204.4980 · arxiv_version: 1204.4980v2 · doi: 10.48550/arxiv.1204.4980 · pith_short_12: JP4D3KO2HMG6 · pith_short_16: JP4D3KO2HMG6YMW5 · pith_short_8: JP4D3KO2

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/JP4D3KO2HMG6YMW5TCQXNHWBJU \
  | 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: 4bf83da9da3b0dec32dd98a1769ec14d26f006d51999a85595a0b299fed215a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ee5c087d4f26d30de165f06e9976751e4f32f5d21b541d0f79f6a18172020eb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2012-04-23T07:18:55Z",
    "title_canon_sha256": "1bf878856ba26881062f125d576eb2c803f79aff18d156091a6c6b0587170f45"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.4980",
    "kind": "arxiv",
    "version": 2
  }
}