Pith Number

pith:P4P5OPUV

pith:2019:P4P5OPUVKVYPPRCQ5HP2ZFR7IY

not attested not anchored not stored refs pending

A Deep Learning Approach to Grasping the Invisible

Changhyun Choi, Hengyue Liang, Yang Yang

arxiv:1909.04840 v2 · 2019-09-11 · cs.RO · cs.AI

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P4P5OPUVKVYPPRCQ5HP2ZFR7IY}

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	2026-07-05T00:37:07.965408Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f1fd73e955570f7c450e9dfac963f460db59575b8e67f3fee1c938f8189c330

Aliases

arxiv: 1909.04840 · arxiv_version: 1909.04840v2 · doi: 10.48550/arxiv.1909.04840 · pith_short_12: P4P5OPUVKVYP · pith_short_16: P4P5OPUVKVYPPRCQ · pith_short_8: P4P5OPUV

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/P4P5OPUVKVYPPRCQ5HP2ZFR7IY \
  | 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: 7f1fd73e955570f7c450e9dfac963f460db59575b8e67f3fee1c938f8189c330

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fdadfdf752d8f9624013d012be3e558679b860818692a27b07cae14c98ccd098",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.RO",
    "submitted_at": "2019-09-11T03:28:55Z",
    "title_canon_sha256": "f2bdbd22b297583f62d12478bfe98fa334f098542b6c3715c9fa82e7e9ec2e4e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.04840",
    "kind": "arxiv",
    "version": 2
  }
}