Pith Number

pith:OTTCEHA4

pith:2026:OTTCEHA4J44NCUUEEHTC4N2LYF

not attested not anchored not stored refs pending

BiRD: A Bidirectional Ranking Defense Mechanism for Retrieval Augmented Generation

Chao Liang, Chengcai Gao, Qiufeng Wang, Xiaochuan Shi, Zhihong Sun

arxiv:2605.20123 v1 · 2026-05-19 · cs.CR · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OTTCEHA4J44NCUUEEHTC4N2LYF}

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	2026-05-20T02:06:03.064053Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74e6221c1c4f38d1528421e62e374bc16c61442c02ea3c8d849b2b94be77a47d

Aliases

arxiv: 2605.20123 · arxiv_version: 2605.20123v1 · doi: 10.48550/arxiv.2605.20123 · pith_short_12: OTTCEHA4J44N · pith_short_16: OTTCEHA4J44NCUUE · pith_short_8: OTTCEHA4

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/OTTCEHA4J44NCUUEEHTC4N2LYF \
  | 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: 74e6221c1c4f38d1528421e62e374bc16c61442c02ea3c8d849b2b94be77a47d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f4b4f9c697aff1fd1093aaafd2baee1fc789091b7a5fcced0476356d46e04705",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2026-05-19T17:11:00Z",
    "title_canon_sha256": "3446defe50ba6413eb4817067984514fe18314b81858e04150f91c7ff2dd5aeb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.20123",
    "kind": "arxiv",
    "version": 1
  }
}