Pith Number

pith:76HUVHRQ

pith:2021:76HUVHRQXQC4YPOQ42A3LZIHW2

not attested not anchored not stored refs pending

Tchebichef Transform Domain-based Deep Learning Architecture for Image Super-resolution

Ahlad Kumar, Harsh Vardhan Singh

arxiv:2102.10640 v2 · 2021-02-21 · eess.IV · cs.CV · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{76HUVHRQXQC4YPOQ42A3LZIHW2}

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	2026-07-05T02:17:10.239512Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff8f4a9e30bc05cc3dd0e681b5e507b68be14e529e3e968ca384297b1698eba6

Aliases

arxiv: 2102.10640 · arxiv_version: 2102.10640v2 · doi: 10.48550/arxiv.2102.10640 · pith_short_12: 76HUVHRQXQC4 · pith_short_16: 76HUVHRQXQC4YPOQ · pith_short_8: 76HUVHRQ

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/76HUVHRQXQC4YPOQ42A3LZIHW2 \
  | 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: ff8f4a9e30bc05cc3dd0e681b5e507b68be14e529e3e968ca384297b1698eba6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0f7232c8b67bf885f95cbd4f2154b8b39c2382947b4f4ad18347519ef977d76",
    "cross_cats_sorted": [
      "cs.CV",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2021-02-21T16:39:20Z",
    "title_canon_sha256": "12f85b2baee0491d45ec0b5f2ba9c24305f2ee5087bb031c2ff786c6441ce245"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.10640",
    "kind": "arxiv",
    "version": 2
  }
}