Pith Number

pith:3KIM6HI2

pith:2020:3KIM6HI2DSNL2T5G2YMO4QTPYV

not attested not anchored not stored refs pending

S2DNet: Learning Accurate Correspondences for Sparse-to-Dense Feature Matching

Guillaume Bourmaud, Hugo Germain, Vincent Lepetit

arxiv:2004.01673 v1 · 2020-04-03 · 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{3KIM6HI2DSNL2T5G2YMO4QTPYV}

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.

Cited by

1 paper in Pith

Efficient 3D Content Reconstruction and Generation

Receipt and verification

First computed	2026-07-05T00:52:34.988982Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

da90cf1d1a1c9abd4fa6d618ee426fc54245cd4c7e30882b04d20755c4d8dfce

Aliases

arxiv: 2004.01673 · arxiv_version: 2004.01673v1 · doi: 10.48550/arxiv.2004.01673 · pith_short_12: 3KIM6HI2DSNL · pith_short_16: 3KIM6HI2DSNL2T5G · pith_short_8: 3KIM6HI2

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/3KIM6HI2DSNL2T5G2YMO4QTPYV \
  | 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: da90cf1d1a1c9abd4fa6d618ee426fc54245cd4c7e30882b04d20755c4d8dfce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca14c2ac85072854a70406aac858618126ccfcd552b3286f9bcf7c1325b1b849",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2020-04-03T17:04:34Z",
    "title_canon_sha256": "280fef466d75ff8ea4140dc05e284b0bafb70b168b079525d14a96a74db44ba6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.01673",
    "kind": "arxiv",
    "version": 1
  }
}