Pith Number

pith:TPEU6T6U

pith:2021:TPEU6T6UQZUF2IOPXQQZOGNPNZ

not attested not anchored not stored refs pending

PU-Flow: a Point Cloud Upsampling Network with Normalizing Flows

Aihua Mao, Junhui Hou, Yaqi Duan, Ying He, Yong-jin Liu, Zihui Du

arxiv:2107.05893 v4 · 2021-07-13 · 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{TPEU6T6UQZUF2IOPXQQZOGNPNZ}

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	2026-07-05T04:30:03.695086Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9bc94f4fd486685d21cfbc219719af6e637198e5c8f1671073d2a4a7804c0cf2

Aliases

arxiv: 2107.05893 · arxiv_version: 2107.05893v4 · doi: 10.48550/arxiv.2107.05893 · pith_short_12: TPEU6T6UQZUF · pith_short_16: TPEU6T6UQZUF2IOP · pith_short_8: TPEU6T6U

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/TPEU6T6UQZUF2IOPXQQZOGNPNZ \
  | 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: 9bc94f4fd486685d21cfbc219719af6e637198e5c8f1671073d2a4a7804c0cf2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d6ac1086b15f647ea48063fba460da2f6bc556660be6dfea37ee2aedd9988e7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-07-13T07:45:48Z",
    "title_canon_sha256": "7524d83bb8c7cf3a5920f1b49e98604b9b20c282553156b3ffed9f6ab56f9c3a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.05893",
    "kind": "arxiv",
    "version": 4
  }
}