Pith Number

pith:OS5KYFIR

pith:2021:OS5KYFIRL253T7ZKBBVGSRNNZV

not attested not anchored not stored refs pending

A Privacy-Preserving Approach to Extraction of Personal Information through Automatic Annotation and Federated Learning

Isar Nejadgholi, Miodrag Bolic, Rajitha Hathurusinghe

arxiv:2105.09198 v1 · 2021-05-19 · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OS5KYFIRL253T7ZKBBVGSRNNZV}

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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.

Cited by

1 paper in Pith

Automated Privacy Information Annotation in Large Language Model Interactions

Receipt and verification

First computed	2026-07-05T02:41:38.562822Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74baac15115ebbb9ff2a086a6945adcd7c03f01184dee348fd0371af0bd3b883

Aliases

arxiv: 2105.09198 · arxiv_version: 2105.09198v1 · doi: 10.48550/arxiv.2105.09198 · pith_short_12: OS5KYFIRL253 · pith_short_16: OS5KYFIRL253T7ZK · pith_short_8: OS5KYFIR

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/OS5KYFIRL253T7ZKBBVGSRNNZV \
  | 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: 74baac15115ebbb9ff2a086a6945adcd7c03f01184dee348fd0371af0bd3b883

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "22295ab8be0c882e491f42da4be21c8e69d10636de616bfce3aae6c25b72a8b9",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-05-19T15:17:44Z",
    "title_canon_sha256": "470e588f0be6fe8a37dbd228ce824cc465b407cd94b9e723d575144b283d9ad3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.09198",
    "kind": "arxiv",
    "version": 1
  }
}