Pith Number

pith:VTH3ABG3

pith:2026:VTH3ABG3MC7E2T4WX6A6HPHRR2

not attested not anchored not stored refs pending

Checking Fact with Better Retrieval: Dynamic Contrastive Learning for Evidence Retrieval

Meijia Yu, Yi Luo, Yingjie Han, Zhongtian Hua

arxiv:2605.27449 v1 · 2026-05-24 · cs.IR · 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{VTH3ABG3MC7E2T4WX6A6HPHRR2}

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	2026-05-28T00:05:19.348126Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

accfb004db60be4d4f96bf81e3bcf18e90152b2614ff75d08abe8d79ed0e583c

Aliases

arxiv: 2605.27449 · arxiv_version: 2605.27449v1 · doi: 10.48550/arxiv.2605.27449 · pith_short_12: VTH3ABG3MC7E · pith_short_16: VTH3ABG3MC7E2T4W · pith_short_8: VTH3ABG3

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/VTH3ABG3MC7E2T4WX6A6HPHRR2 \
  | 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: accfb004db60be4d4f96bf81e3bcf18e90152b2614ff75d08abe8d79ed0e583c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "efd6d705c6e9efe0d69511275f87f3811eca7ab6daccd1afc165fd78ee11a7c3",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2026-05-24T13:10:19Z",
    "title_canon_sha256": "e28cd70762699da52e751eae86b2fab29479e465d2c765604a034ddc38d281c9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.27449",
    "kind": "arxiv",
    "version": 1
  }
}