Pith Number

pith:N3ZRWJJS

pith:2020:N3ZRWJJS6ZJEJURNQE5VNJ22ET

not attested not anchored not stored refs pending

Smooth-AP: Smoothing the Path Towards Large-Scale Image Retrieval

Andrew Brown, Andrew Zisserman, Vicky Kalogeiton, Weidi Xie

arxiv:2007.12163 v2 · 2020-07-23 · 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{N3ZRWJJS6ZJEJURNQE5VNJ22ET}

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	2026-07-05T01:34:11.213740Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ef31b2532f65244d22d813b56a75a24dde3f6e02787e7c970feea8114586fd9

Aliases

arxiv: 2007.12163 · arxiv_version: 2007.12163v2 · doi: 10.48550/arxiv.2007.12163 · pith_short_12: N3ZRWJJS6ZJE · pith_short_16: N3ZRWJJS6ZJEJURN · pith_short_8: N3ZRWJJS

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/N3ZRWJJS6ZJEJURNQE5VNJ22ET \
  | 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: 6ef31b2532f65244d22d813b56a75a24dde3f6e02787e7c970feea8114586fd9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aafedc75801323c92e3e7aa132d35a5ce2dc90626dc5ab3b1ea5ec2f3a24b5ad",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2020-07-23T17:52:03Z",
    "title_canon_sha256": "b8582c98ea811d797168e6a6ba0bca166d4eeffea352bbb070f9060e64c91058"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.12163",
    "kind": "arxiv",
    "version": 2
  }
}