Pith Number

pith:USR2HD75

pith:2020:USR2HD75NAXTLBG7YT4I3AN4XR

not attested not anchored not stored refs pending

Learning and Memorizing Representative Prototypes for 3D Point Cloud Semantic and Instance Segmentation

Chunhua Shen, Dong Gong, Tong He, Zhi Tian

arxiv:2001.01349 v1 · 2020-01-06 · 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{USR2HD75NAXTLBG7YT4I3AN4XR}

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	2026-07-05T00:29:46.077611Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a4a3a38ffd682f3584dfc4f88d81bcbc7945cfd12f0036f04f490ce98cfdf87d

Aliases

arxiv: 2001.01349 · arxiv_version: 2001.01349v1 · doi: 10.48550/arxiv.2001.01349 · pith_short_12: USR2HD75NAXT · pith_short_16: USR2HD75NAXTLBG7 · pith_short_8: USR2HD75

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/USR2HD75NAXTLBG7YT4I3AN4XR \
  | 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: a4a3a38ffd682f3584dfc4f88d81bcbc7945cfd12f0036f04f490ce98cfdf87d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc981c4ffc5837261031dcf84ce8f96cd7078e313dda79f2a7f8de79c869cba7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2020-01-06T01:07:46Z",
    "title_canon_sha256": "ad1b29a6141fc7c24d3dc6cee5ec7bcb79832ae8a3829989f79eeef369ec4030"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.01349",
    "kind": "arxiv",
    "version": 1
  }
}