Pith Number

pith:RR4WM2CD

pith:2018:RR4WM2CDQ5SPVNGMKECHMAUVYL

not attested not anchored not stored refs pending

Optimal Physical Preprocessing for Example-Based Super-Resolution

Alexander Robey, Vidya Ganapati

arxiv:1807.04813 v1 · 2018-07-12 · 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{RR4WM2CDQ5SPVNGMKECHMAUVYL}

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	2026-05-17T23:59:08.040933Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c796668438764fab4cc5104760295c2dd75ef4d84effb9faff557dd47bea4ec

Aliases

arxiv: 1807.04813 · arxiv_version: 1807.04813v1 · doi: 10.48550/arxiv.1807.04813 · pith_short_12: RR4WM2CDQ5SP · pith_short_16: RR4WM2CDQ5SPVNGM · pith_short_8: RR4WM2CD

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/RR4WM2CDQ5SPVNGMKECHMAUVYL \
  | 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: 8c796668438764fab4cc5104760295c2dd75ef4d84effb9faff557dd47bea4ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "51d61ee1c5b0af1b604e2947f42c0e9bc0b9bd4fbf995c0603449a2f5f261b04",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2018-07-12T20:49:23Z",
    "title_canon_sha256": "f2dc0284908be58192c097186ddbd7b9cde59a3950eacea0bd4cc72f6cc1d42a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.04813",
    "kind": "arxiv",
    "version": 1
  }
}