Pith Number

pith:JE63MRTK

pith:2018:JE63MRTKLK5LIAYZL4OOLTHFXT

not attested not anchored not stored refs pending

Focal Loss in 3D Object Detection

Chengju Liu, Lei Tai, Ming Liu, Peng Yun, Yuan Wang

arxiv:1809.06065 v3 · 2018-09-17 · 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{JE63MRTKLK5LIAYZL4OOLTHFXT}

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	2026-05-17T23:56:14.672840Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

493db6466a5abab403195f1ce5cce5bcfd60829f35b26df236296d39ad32fd0b

Aliases

arxiv: 1809.06065 · arxiv_version: 1809.06065v3 · doi: 10.48550/arxiv.1809.06065 · pith_short_12: JE63MRTKLK5L · pith_short_16: JE63MRTKLK5LIAYZ · pith_short_8: JE63MRTK

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/JE63MRTKLK5LIAYZL4OOLTHFXT \
  | 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: 493db6466a5abab403195f1ce5cce5bcfd60829f35b26df236296d39ad32fd0b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a662368bfad97377f0d29566a0558755087f85bc2326ba9d5afbbf4efe7c27e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-09-17T08:02:00Z",
    "title_canon_sha256": "3d0baa2538584120bdf41e0c3ccae04fffdbece22007d7a4f1a4b5b369c3474f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.06065",
    "kind": "arxiv",
    "version": 3
  }
}