Pith Number

pith:SCMUJQHM

pith:2026:SCMUJQHMEBYP2P3A2JEIQODJYZ

not attested not anchored not stored refs resolved

OP4KSR: One-Step Patch-Free 4K Super-Resolution with Periodic Artifact Suppression

Chengyan Deng, Kai Zhang, Li Yu, Lunxi Yuan, Meng Li, Pengbin Yu, Wei Shen, Xue Zhou, Zhentao Chen

OP4KSR enables direct 4K super-resolution of full images in one diffusion step by using F16 VAE compression and fixing periodic artifacts.

arxiv:2605.13457 v1 · 2026-05-13 · cs.CV

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\usepackage{pith}
\pithnumber{SCMUJQHMEBYP2P3A2JEIQODJYZ}

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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.

Claims

C1strongest claim

OP4KSR achieves competitive perceptual quality with efficient inference, generating a 4096×4096 output in only 5.75 seconds on a single NVIDIA H20 GPU.

C2weakest assumption

That the F16 VAE compression preserves enough high-frequency detail for competitive 4K perceptual quality and that the RoPE rescaling plus autocorrelation loss fully suppresses artifacts without introducing new degradations.

C3one line summary

OP4KSR enables efficient one-step 4K super-resolution without patches by adapting Flux with RoPE rescaling and periodicity loss to suppress artifacts.

References

77 extracted · 77 resolved · 6 Pith anchors

[1] In: Proceedings of the IEEE conference on computer vision and pattern recognition workshops 2017

[2] Advances in Neural Information Processing Systems37, 55443–55469 (2024) 2024

[3] Qwen3-VL Technical Report 2025 · arXiv:2511.21631

[4] Stable Video Diffusion: Scaling Latent Video Diffusion Models to Large Datasets 2023 · arXiv:2311.15127

[5] In: Proceedings of the IEEE/CVF conference on computer vision and pattern recognition 2025

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-05-18T02:44:41.789183Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

909944c0ec2070fd3f60d248883869c678709acfbf1651874e6604e113d23ae2

Aliases

arxiv: 2605.13457 · arxiv_version: 2605.13457v1 · doi: 10.48550/arxiv.2605.13457 · pith_short_12: SCMUJQHMEBYP · pith_short_16: SCMUJQHMEBYP2P3A · pith_short_8: SCMUJQHM

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/SCMUJQHMEBYP2P3A2JEIQODJYZ \
  | 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: 909944c0ec2070fd3f60d248883869c678709acfbf1651874e6604e113d23ae2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4fc7b85ca655021dec50432dd18974d58bf9a1fc34a5cc8a457f98e4db3b37a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2026-05-13T12:49:40Z",
    "title_canon_sha256": "c66a50a55b27540ebb027ffdd081de78ec3c11ca37465229cbe4e0a1375495df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.13457",
    "kind": "arxiv",
    "version": 1
  }
}