Pith Number

pith:ZPLV6J3O

pith:2021:ZPLV6J3OOXFJ6GPYVPKD6WJNUZ

not attested not anchored not stored refs pending

Regression or Classification? New Methods to Evaluate No-Reference Picture and Video Quality Models

Alan C. Bovik, Balu Adsumilli, Chia-Ju Chen, Li-Heng Chen, Neil Birkbeck, Yilin Wang, Zhengzhong Tu

arxiv:2102.00155 v1 · 2021-01-30 · cs.CV · cs.MM · eess.IV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZPLV6J3OOXFJ6GPYVPKD6WJNUZ}

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	2026-07-05T02:10:50.699078Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cbd75f276e75ca9f19f8abd43f592da655d0386a152fa8f936a1d3e024e00ad3

Aliases

arxiv: 2102.00155 · arxiv_version: 2102.00155v1 · doi: 10.48550/arxiv.2102.00155 · pith_short_12: ZPLV6J3OOXFJ · pith_short_16: ZPLV6J3OOXFJ6GPY · pith_short_8: ZPLV6J3O

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/ZPLV6J3OOXFJ6GPYVPKD6WJNUZ \
  | 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: cbd75f276e75ca9f19f8abd43f592da655d0386a152fa8f936a1d3e024e00ad3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "90d32db9b31eb0639ba13996f12e952e120e114b46a6c190472dc52649465e39",
    "cross_cats_sorted": [
      "cs.MM",
      "eess.IV"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-01-30T05:40:14Z",
    "title_canon_sha256": "905e4972b88ee7b46500b051b60c65c9c19aba0c8c715d7f5d95b890af82a7c3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.00155",
    "kind": "arxiv",
    "version": 1
  }
}