Pith Number

pith:UHNYK6WZ

pith:2025:UHNYK6WZAZVBYLLSFN3VV5AI4O

not attested not anchored not stored refs pending

Optimal Transport-Guided Source-Free Adaptation for Face Anti-Spoofing

Alessandro Bergamo, Anil K. Jain, Qin Zhang, Tianchen Zhao, Xiang Xu, Xuanbai Chen, Yifan Xing, Zheng Zhang, Zhihua Li, Zhuowei Li

arxiv:2503.22984 v1 · 2025-03-29 · 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{UHNYK6WZAZVBYLLSFN3VV5AI4O}

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	2026-07-05T10:41:28.524831Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1db857ad9066a1c2d722b775af408e3945efa62d68b91083b15d685a5a915ad

Aliases

arxiv: 2503.22984 · arxiv_version: 2503.22984v1 · doi: 10.48550/arxiv.2503.22984 · pith_short_12: UHNYK6WZAZVB · pith_short_16: UHNYK6WZAZVBYLLS · pith_short_8: UHNYK6WZ

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/UHNYK6WZAZVBYLLSFN3VV5AI4O \
  | 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: a1db857ad9066a1c2d722b775af408e3945efa62d68b91083b15d685a5a915ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4532775ff514ed4e3c8e2d232b8e324bf9c1950a7f45a019eaa87e6d7124d6fa",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2025-03-29T06:10:34Z",
    "title_canon_sha256": "17b3dfd42ec368f43795d4cf84af8e906769a221977efd110dde69144cab7e99"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2503.22984",
    "kind": "arxiv",
    "version": 1
  }
}