Pith Number

pith:6U3P23YN

pith:2020:6U3P23YNPJWT4YI4TR5AZ66EYI

not attested not anchored not stored refs pending

FedCoin: A Peer-to-Peer Payment System for Federated Learning

Han Yu, Shuai Sun, Shuangfeng Zhang, Yuan Liu, Zelei Liu, Zhengpeng Ai

arxiv:2002.11711 v1 · 2020-02-26 · cs.CR · cs.LG · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6U3P23YNPJWT4YI4TR5AZ66EYI}

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	2026-07-05T00:44:08.297290Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f536fd6f0d7a6d3e611c9c7a0cfbc4c22f87bc03d5abc29ccc5e5cc47b867ceb

Aliases

arxiv: 2002.11711 · arxiv_version: 2002.11711v1 · doi: 10.48550/arxiv.2002.11711 · pith_short_12: 6U3P23YNPJWT · pith_short_16: 6U3P23YNPJWT4YI4 · pith_short_8: 6U3P23YN

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/6U3P23YNPJWT4YI4TR5AZ66EYI \
  | 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: f536fd6f0d7a6d3e611c9c7a0cfbc4c22f87bc03d5abc29ccc5e5cc47b867ceb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "44f488becd6e4fba6240e3b26d27cc6d5f739dda2a17aa2d5b653ae98103d8ce",
    "cross_cats_sorted": [
      "cs.LG",
      "stat.ML"
    ],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2020-02-26T03:43:48Z",
    "title_canon_sha256": "e45e7190a18142e7249efb598d05f82ea63501708d941b2c24f54204976165fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.11711",
    "kind": "arxiv",
    "version": 1
  }
}