Pith Number

pith:OPPCUWUO

pith:2023:OPPCUWUOORG5RAG4FRRQX47UIV

not attested not anchored not stored refs pending

KFC: Kinship Verification with Fair Contrastive Loss and Multi-Task Learning

Jia Luo Peng, Keng Wei Chang, Shang-Hong Lai

arxiv:2309.10641 v2 · 2023-09-19 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OPPCUWUOORG5RAG4FRRQX47UIV}

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	2026-07-05T06:52:26.757686Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

73de2a5a8e744dd880dc2c630bf3f44569e5854a4bcf9c7e04bb53dd72353e01

Aliases

arxiv: 2309.10641 · arxiv_version: 2309.10641v2 · doi: 10.48550/arxiv.2309.10641 · pith_short_12: OPPCUWUOORG5 · pith_short_16: OPPCUWUOORG5RAG4 · pith_short_8: OPPCUWUO

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/OPPCUWUOORG5RAG4FRRQX47UIV \
  | 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: 73de2a5a8e744dd880dc2c630bf3f44569e5854a4bcf9c7e04bb53dd72353e01

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d887ecce9b9437fa38bdd9698bf3b8cd9a3706bf66b1291ee066cabeb6e2a4ea",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2023-09-19T14:21:33Z",
    "title_canon_sha256": "155c6836f4d793bc194cbb06c638a7e16c0207ff799fa286cd3e3ac37d4685e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2309.10641",
    "kind": "arxiv",
    "version": 2
  }
}