Pith Number

pith:BTFEYMUD

pith:2026:BTFEYMUDGQLOB65EV7AAC6XSCV

not attested not anchored not stored refs pending

Simple and Fast Algorithm for Graph-based Filtered Approximate Nearest Neighbor Search (Full Version)

Daichi Amagata, Keito Kido, Reon Uemura

arxiv:2607.24173 v1 · 2026-07-27 · cs.DB

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BTFEYMUDGQLOB65EV7AAC6XSCV}

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	2026-07-28T01:23:48.528807Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0cca4c32833416e0fba4afc0017af2157fa6d53cc32a3103015b8af1c78df9bc

Aliases

arxiv: 2607.24173 · arxiv_version: 2607.24173v1 · doi: 10.48550/arxiv.2607.24173 · pith_short_12: BTFEYMUDGQLO · pith_short_16: BTFEYMUDGQLOB65E · pith_short_8: BTFEYMUD

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/BTFEYMUDGQLOB65EV7AAC6XSCV \
  | 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: 0cca4c32833416e0fba4afc0017af2157fa6d53cc32a3103015b8af1c78df9bc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c007e0c3d21192d3b5662002679be9654900a6819997da9215b3af5447682b2",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2026-07-27T08:55:09Z",
    "title_canon_sha256": "038658cc19975a1c01f4f47cae05dd75373396961d333c156be9baed51b57604"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.24173",
    "kind": "arxiv",
    "version": 1
  }
}