Pith Number

pith:J7JKYGJF

pith:2019:J7JKYGJFWOX67CDQPN5PFUINPQ

not attested not anchored not stored refs pending

Perceptual Quality Study on Deep Learning based Image Compression

Heming Sun, Jiro Katto, Pinar Akyazi, Touradj Ebrahimi, Zhengxue Cheng

arxiv:1905.03951 v1 · 2019-05-10 · 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{J7JKYGJFWOX67CDQPN5PFUINPQ}

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	2026-05-17T23:46:35.083461Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4fd2ac1925b3afef88707b7af2d10d7c260a6f82a8273fc0533593af2663d26a

Aliases

arxiv: 1905.03951 · arxiv_version: 1905.03951v1 · doi: 10.48550/arxiv.1905.03951 · pith_short_12: J7JKYGJFWOX6 · pith_short_16: J7JKYGJFWOX67CDQ · pith_short_8: J7JKYGJF

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/J7JKYGJFWOX67CDQPN5PFUINPQ \
  | 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: 4fd2ac1925b3afef88707b7af2d10d7c260a6f82a8273fc0533593af2663d26a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75e6ebfa0a60ad679488fa4dfba18173bf61ea3a19f0fca0f3e7b54f79089bca",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2019-05-10T05:56:38Z",
    "title_canon_sha256": "91d0da5c12d0c4be767c96517a381b28611c8e56d5c87b6ad3f50500c111e3d7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.03951",
    "kind": "arxiv",
    "version": 1
  }
}