Pith Number

pith:VQ2ZOG27

pith:2018:VQ2ZOG27T5TWWBNEJKNEV6Q4EQ

not attested not anchored not stored refs pending

Large scale evaluation of local image feature detectors on homography datasets

Andrea Vedaldi, Karel Lenc

arxiv:1807.07939 v1 · 2018-07-20 · 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{VQ2ZOG27T5TWWBNEJKNEV6Q4EQ}

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	2026-05-18T00:10:15.251272Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac35971b5f9f676b05a44a9a4afa1c24307433a32db70fc8570002bc3a27bf21

Aliases

arxiv: 1807.07939 · arxiv_version: 1807.07939v1 · doi: 10.48550/arxiv.1807.07939 · pith_short_12: VQ2ZOG27T5TW · pith_short_16: VQ2ZOG27T5TWWBNE · pith_short_8: VQ2ZOG27

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/VQ2ZOG27T5TWWBNEJKNEV6Q4EQ \
  | 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: ac35971b5f9f676b05a44a9a4afa1c24307433a32db70fc8570002bc3a27bf21

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "107fbd53c781ab498a67c4067513de90ac0825dbb9bdbe254fa04ebbf9bfde8b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-07-20T16:54:27Z",
    "title_canon_sha256": "9efc7f73f72c56b97a885a80e35fc807aab411074d781928b8e8468fb93b1a12"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.07939",
    "kind": "arxiv",
    "version": 1
  }
}