Pith Number

pith:T4G5P347

pith:2026:T4G5P347MCRLDKUYVACCBW3BOR

not attested not anchored not stored refs pending

Why Advanced Encoders Lag on Sparse Retrieval? The Answer and an Approach to Bridging Vocabulary Gaps

Yang Yang, Zhichao Geng

arxiv:2607.00004 v1 · 2026-04-20 · cs.IR · cs.AI · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{T4G5P347MCRLDKUYVACCBW3BOR}

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	2026-07-02T00:18:04.181197Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9f0dd7ef9f60a2b1aa98a80420db61746e40766d7e79a4e4eb0ca972893dc7e0

Aliases

arxiv: 2607.00004 · arxiv_version: 2607.00004v1 · doi: 10.48550/arxiv.2607.00004 · pith_short_12: T4G5P347MCRL · pith_short_16: T4G5P347MCRLDKUY · pith_short_8: T4G5P347

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/T4G5P347MCRLDKUYVACCBW3BOR \
  | 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: 9f0dd7ef9f60a2b1aa98a80420db61746e40766d7e79a4e4eb0ca972893dc7e0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0d2a4837776dd46ecc8f0a4480de9f50506628417113022e38ade9ebdd64e187",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2026-04-20T05:52:25Z",
    "title_canon_sha256": "ce2c72ae63f4e2253371d1e4d2ef9c3d0092f63415259503d4071e63efb5e574"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.00004",
    "kind": "arxiv",
    "version": 1
  }
}