Pith Number

pith:P7VCCLZE

pith:2022:P7VCCLZEN7QALC7QOJZRDPS4GN

not attested not anchored not stored refs pending

ZippyPoint: Fast Interest Point Detection, Description, and Matching through Mixed Precision Discretization

Ajad Chhatkuli, Luc Van Gool, Matteo Spallanzani, Menelaos Kanakis, Simon Maurer

arxiv:2203.03610 v3 · 2022-03-07 · cs.CV · cs.LG · cs.RO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P7VCCLZEN7QALC7QOJZRDPS4GN}

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	2026-07-05T05:59:02.116877Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7fea212f246fe0058bf0727311be5c33468839dadea5d824f9de16ded2acd8c0

Aliases

arxiv: 2203.03610 · arxiv_version: 2203.03610v3 · doi: 10.48550/arxiv.2203.03610 · pith_short_12: P7VCCLZEN7QA · pith_short_16: P7VCCLZEN7QALC7Q · pith_short_8: P7VCCLZE

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/P7VCCLZEN7QALC7QOJZRDPS4GN \
  | 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: 7fea212f246fe0058bf0727311be5c33468839dadea5d824f9de16ded2acd8c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "54b31177125065561ecf452a4bbc76480abd36ddd0d913119b3464c70a3eb8f2",
    "cross_cats_sorted": [
      "cs.LG",
      "cs.RO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2022-03-07T18:59:03Z",
    "title_canon_sha256": "94254ce620a10dda9b09761a591bc7f45ce00e1c981ce9e34969a0c4a1b5fed2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.03610",
    "kind": "arxiv",
    "version": 3
  }
}