Pith Number

pith:FTH5DEMP

pith:2017:FTH5DEMPJQBATGILX6PL5HUG2L

not attested not anchored not stored refs pending

HPatches: A benchmark and evaluation of handcrafted and learned local descriptors

Andrea Vedaldi, Karel Lenc, Krystian Mikolajczyk, Vassileios Balntas

arxiv:1704.05939 v1 · 2017-04-19 · 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{FTH5DEMPJQBATGILX6PL5HUG2L}

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	2026-05-18T00:46:03.724659Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ccfd1918f4c0209990bbf9ebe9e86d2d1c6135226276a90806950ed63eefd69

Aliases

arxiv: 1704.05939 · arxiv_version: 1704.05939v1 · doi: 10.48550/arxiv.1704.05939 · pith_short_12: FTH5DEMPJQBA · pith_short_16: FTH5DEMPJQBATGIL · pith_short_8: FTH5DEMP

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/FTH5DEMPJQBATGILX6PL5HUG2L \
  | 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: 2ccfd1918f4c0209990bbf9ebe9e86d2d1c6135226276a90806950ed63eefd69

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9caf1534ff8f5b81bff4b4d069178c1f983324e3eaede9f8e4ad8c9e9d58f84",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2017-04-19T21:37:03Z",
    "title_canon_sha256": "ba9544850572eb5dbbb9c3d131df846282ccc84b7423f54a5081ceb5e8254ce8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.05939",
    "kind": "arxiv",
    "version": 1
  }
}