Pith Number

pith:Z6K3NMQ6

pith:2025:Z6K3NMQ6HFEFTF4HBLUSG3UPWN

not attested not anchored not stored refs pending

Effective Inference-Free Retrieval for Learned Sparse Representations

Andrew Yates, Cosimo Rulli, Franco Maria Nardini, Rossano Venturini, Thong Nguyen

arxiv:2505.01452 v1 · 2025-04-30 · 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{Z6K3NMQ6HFEFTF4HBLUSG3UPWN}

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	2026-07-05T10:57:58.310146Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf95b6b21e39485997870ae9236e8fb34dbaa9b536651fa1c5b34e5acf70d019

Aliases

arxiv: 2505.01452 · arxiv_version: 2505.01452v1 · doi: 10.48550/arxiv.2505.01452 · pith_short_12: Z6K3NMQ6HFEF · pith_short_16: Z6K3NMQ6HFEFTF4H · pith_short_8: Z6K3NMQ6

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/Z6K3NMQ6HFEFTF4HBLUSG3UPWN \
  | 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: cf95b6b21e39485997870ae9236e8fb34dbaa9b536651fa1c5b34e5acf70d019

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e7377d465ed4a6bcdcb16a828b8c7c30de2b95cf6bea85de891252efaa02729",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2025-04-30T09:10:46Z",
    "title_canon_sha256": "a431c8ab4fd36e4d8b3e3ca4bb617a3c08baffd18057b1f73ac138d244f544b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.01452",
    "kind": "arxiv",
    "version": 1
  }
}