Pith Number

pith:C2SSL7Z3

pith:2016:C2SSL7Z3PFTF4TJJO6MNZGCQQJ

not attested not anchored not stored refs pending

A chromaticity-brightness model for color images denoising in a Meyer's "u+v" framework

Irene Fonseca, M. Luisa Mascarenhas, Rita Ferreira

arxiv:1603.07647 v1 · 2016-03-24 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C2SSL7Z3PFTF4TJJO6MNZGCQQJ}

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	2026-05-18T01:18:20.252980Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

16a525ff3b79665e4d297798dc9850824cfc6b9e90f156a212d7ac558effc261

Aliases

arxiv: 1603.07647 · arxiv_version: 1603.07647v1 · doi: 10.48550/arxiv.1603.07647 · pith_short_12: C2SSL7Z3PFTF · pith_short_16: C2SSL7Z3PFTF4TJJ · pith_short_8: C2SSL7Z3

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/C2SSL7Z3PFTF4TJJO6MNZGCQQJ \
  | 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: 16a525ff3b79665e4d297798dc9850824cfc6b9e90f156a212d7ac558effc261

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4aad0b5fb080adac7a89e7fa58ebe17d409062968d3d722db32293d38394d14",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2016-03-24T16:40:25Z",
    "title_canon_sha256": "7fcdd94c7e94f32ae938f0c37decd762c402936533f7227d20a98cb5c25d2fa6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.07647",
    "kind": "arxiv",
    "version": 1
  }
}