Pith Number

pith:CZXRKQRL

pith:2026:CZXRKQRL7T4ON23UVUWFPU57JZ

not attested not anchored not stored refs pending

Understanding Developer Pain Points in Federated Learning: Insights from Stack Overflow and GitHub

Banani Roy, Khairul Alam, Sahand Saed

arxiv:2607.19621 v1 · 2026-07-21 · cs.SE · 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{CZXRKQRL7T4ON23UVUWFPU57JZ}

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	2026-07-23T00:24:00.244533Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

166f15422bfcf8e6eb74ad2c57d3bf4e40ce9ada18e645ba48c8a354d27c0be8

Aliases

arxiv: 2607.19621 · arxiv_version: 2607.19621v1 · doi: 10.48550/arxiv.2607.19621 · pith_short_12: CZXRKQRL7T4O · pith_short_16: CZXRKQRL7T4ON23U · pith_short_8: CZXRKQRL

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/CZXRKQRL7T4ON23UVUWFPU57JZ \
  | 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: 166f15422bfcf8e6eb74ad2c57d3bf4e40ce9ada18e645ba48c8a354d27c0be8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b1a7294e29ab62a6f775f960ddfd7103177b4eba2fa1811d3833f34090a5815",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2026-07-21T23:06:00Z",
    "title_canon_sha256": "85b409ceb04bbceca08dbcd09e7db3490ee90d5fdf0d3ec47ea3c2fe1ba74b27"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.19621",
    "kind": "arxiv",
    "version": 1
  }
}