Pith Number

pith:X2JMY4LM

pith:2023:X2JMY4LMTGYIP75F2QDABE6I3Y

not attested not anchored not stored refs pending

LFM-3D: Learnable Feature Matching Across Wide Baselines Using 3D Signals

Andr\'e Araujo, Arjun Karpur, Guilherme Perrotta, Howard Zhou, Ricardo Martin-Brualla

arxiv:2303.12779 v3 · 2023-03-22 · 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{X2JMY4LMTGYIP75F2QDABE6I3Y}

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	2026-07-05T07:39:08.736871Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be92cc716c99b087ffa5d4060093c8de3cf04fb1f4005cecb4c3c9d716d13dbd

Aliases

arxiv: 2303.12779 · arxiv_version: 2303.12779v3 · doi: 10.48550/arxiv.2303.12779 · pith_short_12: X2JMY4LMTGYI · pith_short_16: X2JMY4LMTGYIP75F · pith_short_8: X2JMY4LM

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/X2JMY4LMTGYIP75F2QDABE6I3Y \
  | 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: be92cc716c99b087ffa5d4060093c8de3cf04fb1f4005cecb4c3c9d716d13dbd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "265525b668a105e3abfa007c0bbbce475900d173077c10e386a66c1111025952",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2023-03-22T17:46:27Z",
    "title_canon_sha256": "c33604be74ff1c27aaff7ddb650f2d9f00ac55d90e1d6315f9def8353f85646b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2303.12779",
    "kind": "arxiv",
    "version": 3
  }
}