Pith Number

pith:CR7FEE3S

pith:2021:CR7FEE3S2QO5VRILDMUPIUTDLY

not attested not anchored not stored refs pending

FedFace: Collaborative Learning of Face Recognition Model

Anil K. Jain, Divyansh Aggarwal, Jiayu Zhou

arxiv:2104.03008 v2 · 2021-04-07 · 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{CR7FEE3S2QO5VRILDMUPIUTDLY}

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	2026-07-05T02:52:02.217490Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

147e521372d41ddac50b1b28f452635e0b73b77e9b258d46b8907939c640c405

Aliases

arxiv: 2104.03008 · arxiv_version: 2104.03008v2 · doi: 10.48550/arxiv.2104.03008 · pith_short_12: CR7FEE3S2QO5 · pith_short_16: CR7FEE3S2QO5VRIL · pith_short_8: CR7FEE3S

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/CR7FEE3S2QO5VRILDMUPIUTDLY \
  | 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: 147e521372d41ddac50b1b28f452635e0b73b77e9b258d46b8907939c640c405

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "31fe80249582e435e295d2fad1a1490cad101ca3900783e7995cc4a84a862bb3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-04-07T09:25:32Z",
    "title_canon_sha256": "9cb1b8c042989a47e39b65b470de44b2d27170ff5e4266338327d9f56178849d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.03008",
    "kind": "arxiv",
    "version": 2
  }
}