Pith Number

pith:UTQMHMD4

pith:2021:UTQMHMD4P7RIX2KD3IYA4QNOYV

not attested not anchored not stored refs pending

Guided Point Contrastive Learning for Semi-supervised Point Cloud Semantic Segmentation

Chi-Wing Fu, Jiaya Jia, Li Jiang, Shaoshuai Shi, Shu Liu, Xin Lai, Zhuotao Tian

arxiv:2110.08188 v1 · 2021-10-15 · 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{UTQMHMD4P7RIX2KD3IYA4QNOYV}

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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	2026-07-05T03:23:01.361991Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a4e0c3b07c7fe28be943da300e41aec5679090fca76dce936d2a41c4923e6eba

Aliases

arxiv: 2110.08188 · arxiv_version: 2110.08188v1 · doi: 10.48550/arxiv.2110.08188 · pith_short_12: UTQMHMD4P7RI · pith_short_16: UTQMHMD4P7RIX2KD · pith_short_8: UTQMHMD4

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/UTQMHMD4P7RIX2KD3IYA4QNOYV \
  | 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: a4e0c3b07c7fe28be943da300e41aec5679090fca76dce936d2a41c4923e6eba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ce34615ed49bccd4fb01daba2a3c613fb86c5b0ee33f17f14d5e67a2eaefa3f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-10-15T16:38:54Z",
    "title_canon_sha256": "d6e85d149381dc2e46770b9338cd8d9f567ca5d5c6324bb67ce2baac347a81f0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2110.08188",
    "kind": "arxiv",
    "version": 1
  }
}