Pith Number

pith:4VUTKCSH

pith:2022:4VUTKCSHYF5E6RVXQONGVDVVMG

not attested not anchored not stored refs pending

Banding vs. Quality: Perceptual Impact and Objective Assessment

Christos G. Bampis, Joel Sole, Luk\'a\v{s} Krasula, Mariana Afonso, Nil Fons Miret, Zhi Li

arxiv:2202.11038 v1 · 2022-02-22 · 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{4VUTKCSHYF5E6RVXQONGVDVVMG}

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	2026-07-05T03:59:10.792742Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e569350a47c17a4f46b7839a6a8eb561b9b06a749dfb3967a449f5987b544f09

Aliases

arxiv: 2202.11038 · arxiv_version: 2202.11038v1 · doi: 10.48550/arxiv.2202.11038 · pith_short_12: 4VUTKCSHYF5E · pith_short_16: 4VUTKCSHYF5E6RVX · pith_short_8: 4VUTKCSH

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/4VUTKCSHYF5E6RVXQONGVDVVMG \
  | 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: e569350a47c17a4f46b7839a6a8eb561b9b06a749dfb3967a449f5987b544f09

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4beac459e055abdbd37d1ae663b6d3e15dd0cd1ca2525da28a45dec9f1f6d3b2",
    "cross_cats_sorted": [
      "eess.IV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MM",
    "submitted_at": "2022-02-22T17:13:07Z",
    "title_canon_sha256": "20d87bca5db73165524c99040628e0f60dc5b904333ee000af4f17fb99f9d3da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2202.11038",
    "kind": "arxiv",
    "version": 1
  }
}