Pith Number

pith:7B4TUBCF

pith:2026:7B4TUBCFVCJXBMQE2N7FXOBNLJ

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DCD: Domain-Oriented Design for Controlled Retrieval-Augmented Generation

Igor Reshetnikov, Maksim Maksimov, Nikita Belov, Nikita Miteyko, Valerii Kovalskii

The DCD architecture uses hierarchical domain-collection-document decomposition and multi-stage routing to progressively restrict retrieval and generation scopes in RAG systems.

arxiv:2604.07590 v2 · 2026-04-08 · cs.IR · cs.AI

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Claims

C1strongest claim

The DCD architecture enables progressive restriction of both retrieval and generation scopes through hierarchical decomposition and multi-stage routing based on structured model outputs, improving robustness, factual accuracy, and answer relevance in applied RAG scenarios on heterogeneous corpora.

C2weakest assumption

That the hierarchical domain-collection-document decomposition and the multi-stage routing decisions derived from structured model outputs will reliably reduce scope without introducing new failure modes or excessive manual domain engineering on real heterogeneous data.

C3one line summary

DCD introduces a domain-oriented hierarchical decomposition and staged routing workflow that restricts retrieval and generation scopes progressively to improve robustness and factual accuracy in RAG on complex, multi-source queries.

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1 paper in Pith

DCD: Domain-Oriented Design for Controlled Retrieval-Augmented Generation

Receipt and verification

First computed	2026-06-12T01:09:27.508358Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8793a0445a89370b204d37e5bb82d5a5005a5d50bcd3695ef821225c4ff686f

Aliases

arxiv: 2604.07590 · arxiv_version: 2604.07590v2 · doi: 10.48550/arxiv.2604.07590 · pith_short_12: 7B4TUBCFVCJX · pith_short_16: 7B4TUBCFVCJXBMQE · pith_short_8: 7B4TUBCF

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/7B4TUBCFVCJXBMQE2N7FXOBNLJ \
  | 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: f8793a0445a89370b204d37e5bb82d5a5005a5d50bcd3695ef821225c4ff686f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ea225cee9456a4e22355808e6595436f1a65c8b87dece04d8c408643500d5ef",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2026-04-08T20:47:51Z",
    "title_canon_sha256": "67ad143d51c707671336c52ca0a6480f29861590138a96e5f0c7e8941d4accee"
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  "source": {
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    "kind": "arxiv",
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}