Pith Number

pith:IXCPQWBZ

pith:2012:IXCPQWBZAHLWFPXJFW5YZRIOHJ

not attested not anchored not stored refs pending

New precision mass measurements of neutron-rich calcium and potassium isotopes and three-nucleon forces

A.A. Kwiatkowski, A. Chaudhuri, A. Lennarz, A. Schwenk, A.T. Gallant, B.E. Schultz, C. Andreoiu, D. Robertson, E. Man\'e, H. Savajols, J.C. Bale, J.D. Holt, J. Dilling, J. Men\'endez, M.C. Simon, M.R. Pearson, P. Delheij, S. Ettenauer, T. Brunner, U. Chowdhury, V.V. Simon

arxiv:1204.1987 v1 · 2012-04-09 · nucl-ex · nucl-th

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IXCPQWBZAHLWFPXJFW5YZRIOHJ}

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	2026-05-18T03:37:27.716001Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

45c4f8583901d762bee92dbb8cc50e3a61f945aa0cb3daafdc85671952e9315b

Aliases

arxiv: 1204.1987 · arxiv_version: 1204.1987v1 · doi: 10.48550/arxiv.1204.1987 · pith_short_12: IXCPQWBZAHLW · pith_short_16: IXCPQWBZAHLWFPXJ · pith_short_8: IXCPQWBZ

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/IXCPQWBZAHLWFPXJFW5YZRIOHJ \
  | 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: 45c4f8583901d762bee92dbb8cc50e3a61f945aa0cb3daafdc85671952e9315b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b417207fd1f3d76694032cb186de6e64f5e8cf839935ec6c6caa6f2e2cdfcaf",
    "cross_cats_sorted": [
      "nucl-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nucl-ex",
    "submitted_at": "2012-04-09T20:48:42Z",
    "title_canon_sha256": "9836dd7abb3027ec69baab3e7cf19a874ab14823b52df978bf8d190ff849a886"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.1987",
    "kind": "arxiv",
    "version": 1
  }
}