Pith Number

pith:DWQMAPAI

pith:2021:DWQMAPAI747RZM7X7BMGCEOA2F

not attested not anchored not stored refs pending

Federated Face Recognition

Fan Bai, Jiaxiang Wu, Pengcheng Shen, Shaoxin Li, Shuigeng Zhou

arxiv:2105.02501 v1 · 2021-05-06 · cs.CV · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DWQMAPAI747RZM7X7BMGCEOA2F}

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	2026-07-05T02:38:01.806702Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1da0c03c08ff3f1cb3f7f8586111c0d157ae27f052bdd9d3d73b1935bd5140d9

Aliases

arxiv: 2105.02501 · arxiv_version: 2105.02501v1 · doi: 10.48550/arxiv.2105.02501 · pith_short_12: DWQMAPAI747R · pith_short_16: DWQMAPAI747RZM7X · pith_short_8: DWQMAPAI

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/DWQMAPAI747RZM7X7BMGCEOA2F \
  | 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: 1da0c03c08ff3f1cb3f7f8586111c0d157ae27f052bdd9d3d73b1935bd5140d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79104ce523c1d07d86ce50f49f330d653587c5f2db2f2da3e9636d3f9414eef8",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-05-06T08:07:25Z",
    "title_canon_sha256": "43590c5754aeaeeb2cb3c0bfd9a013e6c254bfcfa5b3e6c086580c9848a2759a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.02501",
    "kind": "arxiv",
    "version": 1
  }
}