Pith Number

pith:VWCIHQBP

pith:2022:VWCIHQBP3HOCEHBDTSITKLWTC4

not attested not anchored not stored refs pending

SPAct: Self-supervised Privacy Preservation for Action Recognition

Chen Chen, Ishan Rajendrakumar Dave, Mubarak Shah

arxiv:2203.15205 v1 · 2022-03-29 · cs.CV · cs.CR · 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{VWCIHQBP3HOCEHBDTSITKLWTC4}

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	2026-07-05T04:09:22.760529Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad8483c02fd9dc221c239c91352ed317115e7c37fd7e0b7b24e0078ab2a4f3b3

Aliases

arxiv: 2203.15205 · arxiv_version: 2203.15205v1 · doi: 10.48550/arxiv.2203.15205 · pith_short_12: VWCIHQBP3HOC · pith_short_16: VWCIHQBP3HOCEHBD · pith_short_8: VWCIHQBP

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/VWCIHQBP3HOCEHBDTSITKLWTC4 \
  | 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: ad8483c02fd9dc221c239c91352ed317115e7c37fd7e0b7b24e0078ab2a4f3b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d79a72ec70e758f67ed1f45bcff4bee485443f7627d105b988c2f36f1937383",
    "cross_cats_sorted": [
      "cs.CR",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2022-03-29T02:56:40Z",
    "title_canon_sha256": "4c74c3a9086c68a9c944289ca5ede8f943050e8719dc219c393542aa95c02510"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.15205",
    "kind": "arxiv",
    "version": 1
  }
}