Pith Number

pith:TPH4ZB5L

pith:2020:TPH4ZB5LMAK6UMC67EQIFSD4PU

not attested not anchored not stored refs pending

Point2Skeleton: Learning Skeletal Representations from Point Clouds

Changjian Li, Cheng Lin, Nenglun Chen, Wenping Wang, Yi-King Choi, Yuan Liu

arxiv:2012.00230 v2 · 2020-12-01 · 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{TPH4ZB5LMAK6UMC67EQIFSD4PU}

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	2026-07-05T02:29:56.120666Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9bcfcc87ab6015ea305ef92082c87c7d3321ed46e0fbba84c6c97ac14d75633e

Aliases

arxiv: 2012.00230 · arxiv_version: 2012.00230v2 · doi: 10.48550/arxiv.2012.00230 · pith_short_12: TPH4ZB5LMAK6 · pith_short_16: TPH4ZB5LMAK6UMC6 · pith_short_8: TPH4ZB5L

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/TPH4ZB5LMAK6UMC67EQIFSD4PU \
  | 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: 9bcfcc87ab6015ea305ef92082c87c7d3321ed46e0fbba84c6c97ac14d75633e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d00e3cd4a0b42df93cae304f1db42a52fed7c79ae6810eed1da4ea1ba86addd1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2020-12-01T03:04:09Z",
    "title_canon_sha256": "d54d98d91fc3029945936ed8bfee6110a9c8321a38f808fb83b731d09de77359"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.00230",
    "kind": "arxiv",
    "version": 2
  }
}