Pith Number

pith:5YVJTLXX

pith:2015:5YVJTLXXCXE6GPQYB2DMQ2YIZW

not attested not anchored not stored refs pending

Single image super-resolution by approximated Heaviside functions

Liang-Jian Deng, Ting-Zhu Huang, Weihong Guo

arxiv:1503.03630 v1 · 2015-03-12 · cs.CV · cs.IT · math.IT · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5YVJTLXXCXE6GPQYB2DMQ2YIZW}

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	2026-05-18T02:24:27.832712Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee2a99aef715c9e33e180e86c86b08cd9cf86083c1a6e7f088924d688b770326

Aliases

arxiv: 1503.03630 · arxiv_version: 1503.03630v1 · doi: 10.48550/arxiv.1503.03630 · pith_short_12: 5YVJTLXXCXE6 · pith_short_16: 5YVJTLXXCXE6GPQY · pith_short_8: 5YVJTLXX

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/5YVJTLXXCXE6GPQYB2DMQ2YIZW \
  | 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: ee2a99aef715c9e33e180e86c86b08cd9cf86083c1a6e7f088924d688b770326

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c4fbafaeaa0253c9f5220e3cc4b1b08d343a6b72eabcaf3835c3e1498ddaf65",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2015-03-12T08:54:54Z",
    "title_canon_sha256": "8771cb47dd56c0eb39a5193090fa7fb23926dc2f0daaa27f6f21aeef6b3f9728"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.03630",
    "kind": "arxiv",
    "version": 1
  }
}