Pith Number

pith:VEKUBTMN

pith:2021:VEKUBTMNL6UVLABKL5A2ZSYPY7

not attested not anchored not stored refs pending

Self-Supervised Learning of Perceptually Optimized Block Motion Estimates for Video Compression

Alan C. Bovik, Andrey Norkin, Somdyuti Paul

arxiv:2110.01805 v4 · 2021-10-05 · eess.IV · 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{VEKUBTMNL6UVLABKL5A2ZSYPY7}

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	2026-07-05T05:22:04.627690Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a91540cd8d5fa955802a5f41accb0fc7f31529e5827866641c669d4a7dd89428

Aliases

arxiv: 2110.01805 · arxiv_version: 2110.01805v4 · doi: 10.48550/arxiv.2110.01805 · pith_short_12: VEKUBTMNL6UV · pith_short_16: VEKUBTMNL6UVLABK · pith_short_8: VEKUBTMN

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/VEKUBTMNL6UVLABKL5A2ZSYPY7 \
  | 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: a91540cd8d5fa955802a5f41accb0fc7f31529e5827866641c669d4a7dd89428

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c562358c10e7ee1b7f55f2e78f22b0b684f3fa8bc02595a950c1a65c748567e",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2021-10-05T03:38:43Z",
    "title_canon_sha256": "fbd03bab059f2367269e50635e767d04012b955ab2a6b7cc051fb06f7f09515e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2110.01805",
    "kind": "arxiv",
    "version": 4
  }
}