Pith Number

pith:VM5MOGRW

pith:2019:VM5MOGRWI36H6PGCSGJHB3Q3CK

not attested not anchored not stored refs pending

Learning a No-Reference Quality Assessment Model of Enhanced Images With Big Data

Dacheng Tao, Junfei Qiao, Ke Gu, Weisi Lin

arxiv:1904.08632 v1 · 2019-04-18 · 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{VM5MOGRWI36H6PGCSGJHB3Q3CK}

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	2026-05-17T23:48:13.605996Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ab3ac71a3646fc7f3cc2919270ee1b12b0ab2587fa7df06a2f5b28f4b1e91cb3

Aliases

arxiv: 1904.08632 · arxiv_version: 1904.08632v1 · doi: 10.48550/arxiv.1904.08632 · pith_short_12: VM5MOGRWI36H · pith_short_16: VM5MOGRWI36H6PGC · pith_short_8: VM5MOGRW

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/VM5MOGRWI36H6PGCSGJHB3Q3CK \
  | 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: ab3ac71a3646fc7f3cc2919270ee1b12b0ab2587fa7df06a2f5b28f4b1e91cb3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a97578c9f7736b296c02dc5e7a4835984a97469ec6840c151d84a5971fb961f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-04-18T08:14:24Z",
    "title_canon_sha256": "63dfc0666540526d76120f00a9601207966f10988a7f1bb7c40e4e2434a2b127"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.08632",
    "kind": "arxiv",
    "version": 1
  }
}