Pith Number

pith:PPC42U2S

pith:2012:PPC42U2S2WNGX7YCNKTBNZIHDM

not attested not anchored not stored refs pending

Image Super-Resolution via Sparse Bayesian Modeling of Natural Images

David Wipf, Haichao Zhang, Yanning Zhang

arxiv:1209.4317 v1 · 2012-09-19 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PPC42U2S2WNGX7YCNKTBNZIHDM}

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	2026-05-18T03:45:12.882339Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7bc5cd5352d59a6bff026aa616e5071b05d9b862365095228efe4297f9eae159

Aliases

arxiv: 1209.4317 · arxiv_version: 1209.4317v1 · doi: 10.48550/arxiv.1209.4317 · pith_short_12: PPC42U2S2WNG · pith_short_16: PPC42U2S2WNGX7YC · pith_short_8: PPC42U2S

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/PPC42U2S2WNGX7YCNKTBNZIHDM \
  | 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: 7bc5cd5352d59a6bff026aa616e5071b05d9b862365095228efe4297f9eae159

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7a98fa06612623aec778cc281edf2dc9f3c27f637431bb8cf498b7af4b6b8543",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2012-09-19T18:02:41Z",
    "title_canon_sha256": "798787a73e85b777089e47d779e6119d003a7ee4f01dfd760a48fe69048bcfc1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.4317",
    "kind": "arxiv",
    "version": 1
  }
}