Pith Number

pith:GQQZ7IHW

pith:2020:GQQZ7IHWD2Z25JCTI7YAL7M2HW

not attested not anchored not stored refs pending

Bi-Directional Attention for Joint Instance and Semantic Segmentation in Point Clouds

Changhe Tu, Guangnan Wu, Peng Jiang, Zhiyi Pan

arxiv:2003.05420 v1 · 2020-03-11 · 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{GQQZ7IHWD2Z25JCTI7YAL7M2HW}

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	2026-07-05T00:47:24.062339Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

34219fa0f61eb3aea45347f005fd9a3d96fd84c939a733a024472a894227368a

Aliases

arxiv: 2003.05420 · arxiv_version: 2003.05420v1 · doi: 10.48550/arxiv.2003.05420 · pith_short_12: GQQZ7IHWD2Z2 · pith_short_16: GQQZ7IHWD2Z25JCT · pith_short_8: GQQZ7IHW

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/GQQZ7IHWD2Z25JCTI7YAL7M2HW \
  | 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: 34219fa0f61eb3aea45347f005fd9a3d96fd84c939a733a024472a894227368a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48b51f2ddfb48fed0b210875aedd4bea83d0d84718161b89dc155c517059fcdb",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2020-03-11T17:16:07Z",
    "title_canon_sha256": "c92ec240f35bca79daa3cdc321f510f02dbf4bba6a6a0a83c112c4f516aaeef0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.05420",
    "kind": "arxiv",
    "version": 1
  }
}