Pith Number

pith:P2AEKIOL

pith:2022:P2AEKIOLZUF6ICXC3EWPZIUOMS

not attested not anchored not stored refs pending

An Unsupervised Machine Learning Approach for Ground-Motion Spectra Clustering and Selection

Hao Sun, Jerome F. Hajjar, Pu Ren, R. Bailey Bond

arxiv:2212.03188 v2 · 2022-12-06 · physics.geo-ph · cs.AI · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P2AEKIOLZUF6ICXC3EWPZIUOMS}

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	2026-07-05T07:44:52.114997Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e804521cbcd0be40ae2d92cfca28e64846fc8d2bc43533a6f1ab205ef1a5d24

Aliases

arxiv: 2212.03188 · arxiv_version: 2212.03188v2 · doi: 10.48550/arxiv.2212.03188 · pith_short_12: P2AEKIOLZUF6 · pith_short_16: P2AEKIOLZUF6ICXC · pith_short_8: P2AEKIOL

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/P2AEKIOLZUF6ICXC3EWPZIUOMS \
  | 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: 7e804521cbcd0be40ae2d92cfca28e64846fc8d2bc43533a6f1ab205ef1a5d24

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d3a0e729a6364d1ff457982f8151a0b9385c132e646b1961e34a49d0aadfdf2",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.geo-ph",
    "submitted_at": "2022-12-06T18:02:55Z",
    "title_canon_sha256": "6aa9476a3d229469b7b407c818d707a49e6bd3a17e7a39fdb77f562951030eb1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2212.03188",
    "kind": "arxiv",
    "version": 2
  }
}