Pith Number

pith:4MGR2VIW

pith:2012:4MGR2VIWII7Q4U5PLCN3A3U2JS

not attested not anchored not stored refs pending

Hyperfine structure of excited state of muonic helium atom

A.A. Krutov (Samara State U.), A.P. Martynenko (Samara State U. & Samara State Aerospace U.)

arxiv:1208.4768 v1 · 2012-08-23 · hep-ph · 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{4MGR2VIWII7Q4U5PLCN3A3U2JS}

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	2026-05-18T03:23:03.712014Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e30d1d5516423f0e53af589bb06e9a4cacf72c22a2b7af08c7660645a0a5c24e

Aliases

arxiv: 1208.4768 · arxiv_version: 1208.4768v1 · doi: 10.48550/arxiv.1208.4768 · pith_short_12: 4MGR2VIWII7Q · pith_short_16: 4MGR2VIWII7Q4U5P · pith_short_8: 4MGR2VIW

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/4MGR2VIWII7Q4U5PLCN3A3U2JS \
  | 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: e30d1d5516423f0e53af589bb06e9a4cacf72c22a2b7af08c7660645a0a5c24e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9464985bfb68d4f30d2f5278e5fe65ba3242feed9f3311933e348bb22c7c2914",
    "cross_cats_sorted": [
      "physics.atom-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2012-08-23T14:30:08Z",
    "title_canon_sha256": "8db046995c12148d74bdf08cd07e4b6c43bad8233281bb4e556263810c87745e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.4768",
    "kind": "arxiv",
    "version": 1
  }
}