Pith Number

pith:KTPZ57SB

pith:2026:KTPZ57SBSGNGJLLTLVDC25U6QE

not attested not anchored not stored refs pending

DIRECTOR: Dynamic Index-based Recommendation with Transport-Optimized Retrieval

Chao Feng, Chenghao Zhang, Defu Lian, Xiang Li, Yuanhao Pu

arxiv:2607.26418 v1 · 2026-07-29 · 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{KTPZ57SBSGNGJLLTLVDC25U6QE}

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	2026-07-30T01:18:22.081787Z
Builder	pith-number-builder-2026-05-17-v1
Signature	unsigned_v0
Schema	pith-number/v1.0

Canonical hash

54df9efe41919a64ad735d462d769e81368d5c7009bb866fdd918f9d740ca7da

Aliases

arxiv: 2607.26418 · arxiv_version: 2607.26418v1 · doi: 10.48550/arxiv.2607.26418 · pith_short_12: KTPZ57SBSGNG · pith_short_16: KTPZ57SBSGNGJLLT · pith_short_8: KTPZ57SB

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/KTPZ57SBSGNGJLLTLVDC25U6QE \
  | 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: 54df9efe41919a64ad735d462d769e81368d5c7009bb866fdd918f9d740ca7da

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4143c7e9c6c0f419fa795a79704c10587a29ba5a4c3ba0d84f7f3df8276b70ab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2026-07-29T03:03:03Z",
    "title_canon_sha256": "70e6a0452fe092a28ce2cd0fb0061f8da29e6bb3e6faa696b0c2dec75bb404c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.26418",
    "kind": "arxiv",
    "version": 1
  }
}