Pith Number

pith:4QNNCIJM

pith:2021:4QNNCIJMMOCK2PES7JK2WG6BMI

not attested not anchored not stored refs pending

Reverse Maximum Inner Product Search: How to efficiently find users who would like to buy my item?

Daichi Amagata, Takahiro Hara

arxiv:2110.07131 v1 · 2021-10-14 · 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{4QNNCIJMMOCK2PES7JK2WG6BMI}

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	2026-07-05T03:22:39.126865Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e41ad1212c6384ad3c92fa55ab1bc1622d7a73af1505c2e3b14f2d1d05b54c3e

Aliases

arxiv: 2110.07131 · arxiv_version: 2110.07131v1 · doi: 10.48550/arxiv.2110.07131 · pith_short_12: 4QNNCIJMMOCK · pith_short_16: 4QNNCIJMMOCK2PES · pith_short_8: 4QNNCIJM

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/4QNNCIJMMOCK2PES7JK2WG6BMI \
  | 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: e41ad1212c6384ad3c92fa55ab1bc1622d7a73af1505c2e3b14f2d1d05b54c3e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f2d75a7c1d5b482d6a23997d39fa91c4017bd5ab9aaab44eb931262181c808be",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2021-10-14T03:24:47Z",
    "title_canon_sha256": "28a486eb03411fc93b48435a3f6db77165f58834a5361b786d2253a279559b5b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2110.07131",
    "kind": "arxiv",
    "version": 1
  }
}