Pith Number

pith:46OJ6QSA

pith:2019:46OJ6QSABZ5A5BTVBXHNLDPAXR

not attested not anchored not stored refs pending

An Evaluation of Feature Matchers for Fundamental Matrix Estimation

Ian Reid, Jia-Wang Bian, Ji Zhao, Le Zhang, Ming-Ming Cheng, Yu-Huan Wu, Yun Liu

arxiv:1908.09474 v2 · 2019-08-26 · 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{46OJ6QSABZ5A5BTVBXHNLDPAXR}

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	2026-07-05T00:04:10.396350Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e79c9f42400e7a0e86750dced58de0bc5df1a69d83cdc344d3eb26183dd5a0a5

Aliases

arxiv: 1908.09474 · arxiv_version: 1908.09474v2 · doi: 10.48550/arxiv.1908.09474 · pith_short_12: 46OJ6QSABZ5A · pith_short_16: 46OJ6QSABZ5A5BTV · pith_short_8: 46OJ6QSA

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/46OJ6QSABZ5A5BTVBXHNLDPAXR \
  | 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: e79c9f42400e7a0e86750dced58de0bc5df1a69d83cdc344d3eb26183dd5a0a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9587a6ebdae83ac54586e9a9d512efdd7ee02267089b588da134458c246131cc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-08-26T05:21:39Z",
    "title_canon_sha256": "e02396b3ea8fc39b38d9f4661d1398b40ae3ce3a9680f48b70830cce6fe3bc90"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.09474",
    "kind": "arxiv",
    "version": 2
  }
}