Pith Number

pith:OVB7ECM4

pith:2019:OVB7ECM4DKLYHYXRZKFYXYMMKF

not attested not anchored not stored refs pending

Reliable and Efficient Image Cropping: A Grid Anchor based Approach

Hui Zeng, Lei Zhang, Lida Li, Zisheng Cao

arxiv:1904.04441 v1 · 2019-04-09 · 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{OVB7ECM4DKLYHYXRZKFYXYMMKF}

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	2026-05-17T23:48:58.997528Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7543f2099c1a9783e2f1ca8b8be18c515cb53147cec84b204b2cc1e4665c691b

Aliases

arxiv: 1904.04441 · arxiv_version: 1904.04441v1 · doi: 10.48550/arxiv.1904.04441 · pith_short_12: OVB7ECM4DKLY · pith_short_16: OVB7ECM4DKLYHYXR · pith_short_8: OVB7ECM4

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/OVB7ECM4DKLYHYXRZKFYXYMMKF \
  | 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: 7543f2099c1a9783e2f1ca8b8be18c515cb53147cec84b204b2cc1e4665c691b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e0766c65e190a6617c38d2bec51703131d92dd6cc52d4b9dfef430348ea664c7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-04-09T03:18:20Z",
    "title_canon_sha256": "6eeab43ac4378a619180ef5d07563c10ccd3fbdb8a9f08d33b8395a65146f77c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.04441",
    "kind": "arxiv",
    "version": 1
  }
}