pith. sign in
Pith Number

pith:Y76ZN6Y7

pith:2015:Y76ZN6Y7OCCDOOJCESWPDAXS5Z
not attested not anchored not stored refs pending

The Strong CP Problem and Discrete Symmetries

Martin Spinrath

arxiv:1503.03659 v1 · 2015-03-12 · hep-ph

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{Y76ZN6Y7OCCDOOJCESWPDAXS5Z}

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 2026-05-18T01:55:52.573551Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

c7fd96fb1f708437392224acf182f2ee5f0485fe55d9e3d64a6d4bab35b3a941

Aliases

arxiv: 1503.03659 · arxiv_version: 1503.03659v1 · doi: 10.48550/arxiv.1503.03659 · pith_short_12: Y76ZN6Y7OCCD · pith_short_16: Y76ZN6Y7OCCDOOJC · pith_short_8: Y76ZN6Y7
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/Y76ZN6Y7OCCDOOJCESWPDAXS5Z \
  | 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: c7fd96fb1f708437392224acf182f2ee5f0485fe55d9e3d64a6d4bab35b3a941
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "a2dfc8f5aa205e39aa60986f24652ffa3f11c51554e51737fb98ac77364833fe",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2015-03-12T10:10:30Z",
    "title_canon_sha256": "0c58b481093948518fec990a4d6e236f85cb405f15857974e6957d5d01c8b4f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.03659",
    "kind": "arxiv",
    "version": 1
  }
}