Pith Number

pith:MTUAIAS7

pith:2019:MTUAIAS7VWVBRYYJORK6X5UIKJ

not attested not anchored not stored refs pending

Adaptive Hierarchical Down-Sampling for Point Cloud Classification

Bingbing Liu, Ehsan Nezhadarya, Ehsan Taghavi, Jun Luo, Ryan Razani

arxiv:1904.08506 v2 · 2019-04-11 · 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{MTUAIAS7VWVBRYYJORK6X5UIKJ}

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	2026-07-05T01:05:34.606518Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64e804025fadaa18e3097455ebf688525b1b719c5c0105bdfde86665326c1cff

Aliases

arxiv: 1904.08506 · arxiv_version: 1904.08506v2 · doi: 10.48550/arxiv.1904.08506 · pith_short_12: MTUAIAS7VWVB · pith_short_16: MTUAIAS7VWVBRYYJ · pith_short_8: MTUAIAS7

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/MTUAIAS7VWVBRYYJORK6X5UIKJ \
  | 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: 64e804025fadaa18e3097455ebf688525b1b719c5c0105bdfde86665326c1cff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "63ea26cb558a578c4656344580e3d3b6ff12dab5b3efad9ccb5c1b05ae51c764",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-04-11T23:10:13Z",
    "title_canon_sha256": "94ea3742b8988e2af50c20ad699ad0fd81480213a51ff5d989b608aa219072d7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.08506",
    "kind": "arxiv",
    "version": 2
  }
}