Pith Number

pith:J2CLXTQ3

pith:2022:J2CLXTQ3WV3JDEFUTE4BCE66OI

not attested not anchored not stored refs pending

R2FD2: Fast and Robust Matching of Multimodal Remote Sensing Image via Repeatable Feature Detector and Rotation-invariant Feature Descriptor

Bai Zhu, Chao Yang, Jianwei Fan, Jinkun Dai, Yuanxin Ye

arxiv:2212.02277 v4 · 2022-12-05 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{J2CLXTQ3WV3JDEFUTE4BCE66OI}

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	2026-07-05T05:39:26.927618Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4e84bbce1bb5769190b499381113de721ff74b3205d592f1093f727942396dcc

Aliases

arxiv: 2212.02277 · arxiv_version: 2212.02277v4 · doi: 10.48550/arxiv.2212.02277 · pith_short_12: J2CLXTQ3WV3J · pith_short_16: J2CLXTQ3WV3JDEFU · pith_short_8: J2CLXTQ3

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/J2CLXTQ3WV3JDEFUTE4BCE66OI \
  | 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: 4e84bbce1bb5769190b499381113de721ff74b3205d592f1093f727942396dcc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e8e8ab4797b055a42436e7d95c1b06bccb83d5bb73f7c35d6d1d9283c13a8d4",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2022-12-05T13:55:02Z",
    "title_canon_sha256": "e17d11f9318e492916f16bbde897075d6c454e81b50743621f391a981d089ac3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2212.02277",
    "kind": "arxiv",
    "version": 4
  }
}