Pith Number

pith:IK4U4QRA

pith:2020:IK4U4QRA4224EW3MQMSHU6UKPC

not attested not anchored not stored refs pending

Weakly Supervised Semantic Point Cloud Segmentation:Towards 10X Fewer Labels

Gim Hee Lee, Xun Xu

arxiv:2004.04091 v1 · 2020-04-08 · 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{IK4U4QRA4224EW3MQMSHU6UKPC}

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	2026-07-05T00:53:58.982635Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42b94e4220e6b5c25b6c83247a7a8a78bbd2dd592c82a0622bb3b013e48ff2c4

Aliases

arxiv: 2004.04091 · arxiv_version: 2004.04091v1 · doi: 10.48550/arxiv.2004.04091 · pith_short_12: IK4U4QRA4224 · pith_short_16: IK4U4QRA4224EW3M · pith_short_8: IK4U4QRA

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/IK4U4QRA4224EW3MQMSHU6UKPC \
  | 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: 42b94e4220e6b5c25b6c83247a7a8a78bbd2dd592c82a0622bb3b013e48ff2c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55fffce9236e6103ee40de2544fcefa744ef7e7384d8f3cee5017747f5baedcb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2020-04-08T16:14:41Z",
    "title_canon_sha256": "f8200364b1fef33bd010d41783b5acb1dd5916767db76a6acd4e5c1c3acfd98a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.04091",
    "kind": "arxiv",
    "version": 1
  }
}