Pith Number

pith:4Z4JFXLD

pith:2026:4Z4JFXLDBTLMCEU73E3W7V7A7Q

not attested not anchored not stored refs pending

SHARD: cell-keyed residual splitting for alignment-resistant private dense retrieval

Sergey Kurilenko

arxiv:2606.27976 v1 · 2026-06-26 · cs.CR · cs.AI · 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{4Z4JFXLDBTLMCEU73E3W7V7A7Q}

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	2026-06-29T01:14:54.357842Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e67892dd630cd6c1129fd9376fd7e0fc1e9b35197f15191aa81a161a9d388c2c

Aliases

arxiv: 2606.27976 · arxiv_version: 2606.27976v1 · doi: 10.48550/arxiv.2606.27976 · pith_short_12: 4Z4JFXLDBTLM · pith_short_16: 4Z4JFXLDBTLMCEU7 · pith_short_8: 4Z4JFXLD

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/4Z4JFXLDBTLMCEU73E3W7V7A7Q \
  | 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: e67892dd630cd6c1129fd9376fd7e0fc1e9b35197f15191aa81a161a9d388c2c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "485249e1571be469c6ed094fe974cb6bc443a1d8c7fa52492a333d7f0a1d841b",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.IR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2026-06-26T11:26:53Z",
    "title_canon_sha256": "bed0ffacd3290e31aac92912327a7ba8e66960fa8d0ddc29ac65f83070a3e750"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.27976",
    "kind": "arxiv",
    "version": 1
  }
}