Pith Number

pith:KVSH6CBF

pith:2021:KVSH6CBFSD5WLG6FRST5R2DNCA

not attested not anchored not stored refs pending

From Machine Learning to Transfer Learning in Laser-Induced Breakdown Spectroscopy: the Case of Rock Analysis for Mars Exploration

Chen Sun, Fengye Chen, Jin Yu, Long Zou, Mengting Wu, Sahar Shabbir, Weijie Xu, Yongqi Tan, Yuqing Zhang, Zengqi Yue

arxiv:2102.03768 v1 · 2021-02-07 · physics.app-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{KVSH6CBFSD5WLG6FRST5R2DNCA}

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	2026-07-05T04:15:08.093574Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

55647f082590fb659bc58ca7d8e86d10123bc79cdabff105bf74c338b21ae99b

Aliases

arxiv: 2102.03768 · arxiv_version: 2102.03768v1 · doi: 10.48550/arxiv.2102.03768 · pith_short_12: KVSH6CBFSD5W · pith_short_16: KVSH6CBFSD5WLG6F · pith_short_8: KVSH6CBF

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/KVSH6CBFSD5WLG6FRST5R2DNCA \
  | 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: 55647f082590fb659bc58ca7d8e86d10123bc79cdabff105bf74c338b21ae99b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40f479d0e6cd770ed87be9169340908fb7af51f38c22aa7e951dfe14348c223e",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2021-02-07T10:34:20Z",
    "title_canon_sha256": "dd9cd9b6753d8561b4422a438388fcf1a7d26dd0a92709f248ff4f9bfc2b44eb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.03768",
    "kind": "arxiv",
    "version": 1
  }
}