Pith Number

pith:VCYG2OV3

pith:2019:VCYG2OV3SIA4L2RFM5PQWEHOB2

not attested not anchored not stored refs pending

Comparative evaluation of 2D feature correspondence selection algorithms

Chen Zhao, Jiaqi Yang, Yang Xiao, Zhiguo Cao

arxiv:1904.13383 v1 · 2019-04-30 · 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{VCYG2OV3SIA4L2RFM5PQWEHOB2}

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	2026-05-17T23:47:21.481842Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8b06d3abb9201c5ea25675f0b10ee0eae65dd740679865b3387332e03e293fb

Aliases

arxiv: 1904.13383 · arxiv_version: 1904.13383v1 · doi: 10.48550/arxiv.1904.13383 · pith_short_12: VCYG2OV3SIA4 · pith_short_16: VCYG2OV3SIA4L2RF · pith_short_8: VCYG2OV3

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/VCYG2OV3SIA4L2RFM5PQWEHOB2 \
  | 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: a8b06d3abb9201c5ea25675f0b10ee0eae65dd740679865b3387332e03e293fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b7daf7dfffcde1adc4d82e2fa68efd4dd2be7a3eeb4c3a81f3a7f0221b00c951",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-04-30T17:31:07Z",
    "title_canon_sha256": "7891581c1a871a525a05fd1ce254a3095451e9d06f8d0a3d8deb08a931bf55e5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.13383",
    "kind": "arxiv",
    "version": 1
  }
}