Pith Number

pith:Z6G3B4KR

pith:2012:Z6G3B4KRT5UKCOKTO3KFVYN7LD

not attested not anchored not stored refs pending

Image denoising with multi-layer perceptrons, part 1: comparison with existing algorithms and with bounds

Christian J. Schuler, Harold Christopher Burger, Stefan Harmeling

arxiv:1211.1544 v3 · 2012-11-07 · cs.CV · cs.LG

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

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	2026-05-18T03:41:12.063062Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf8db0f1519f68a1395376d45ae1bf58c3f1a9eaf4fa22be7b42f4ddab93f458

Aliases

arxiv: 1211.1544 · arxiv_version: 1211.1544v3 · doi: 10.48550/arxiv.1211.1544 · pith_short_12: Z6G3B4KRT5UK · pith_short_16: Z6G3B4KRT5UKCOKT · pith_short_8: Z6G3B4KR

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/Z6G3B4KRT5UKCOKTO3KFVYN7LD \
  | 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: cf8db0f1519f68a1395376d45ae1bf58c3f1a9eaf4fa22be7b42f4ddab93f458

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "585e5c5d4e86c07fb2c6331adc1b46d5865fac51402eaa7a4e07c0d88fa55d83",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2012-11-07T13:35:52Z",
    "title_canon_sha256": "006d76718db6649f9b3ea3bd499a7ec21e91d0169bd10424adb2937be1c60179"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.1544",
    "kind": "arxiv",
    "version": 3
  }
}