Pith Number

pith:XAWT6NSD

pith:2016:XAWT6NSDPF77BJFTJCQYAQH3IN

not attested not anchored not stored refs pending

An Orthogonal 16-point Approximate DCT for Image and Video Compression

A. J. Kozakevicius, A. Madanayake, F. M. Bayer, R. J. Cintra, S. Kulasekera, T. L. T. da Silveira

arxiv:1606.05562 v1 · 2016-05-27 · cs.IT · cs.AR · cs.NA · math.IT · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XAWT6NSDPF77BJFTJCQYAQH3IN}

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	2026-05-18T01:12:19.399466Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b82d3f3643797ff0a4b348a18040fb43643d692dab8b36b8598035678afea9a0

Aliases

arxiv: 1606.05562 · arxiv_version: 1606.05562v1 · doi: 10.48550/arxiv.1606.05562 · pith_short_12: XAWT6NSDPF77 · pith_short_16: XAWT6NSDPF77BJFT · pith_short_8: XAWT6NSD

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/XAWT6NSDPF77BJFTJCQYAQH3IN \
  | 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: b82d3f3643797ff0a4b348a18040fb43643d692dab8b36b8598035678afea9a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f22836fa473a50a94a3d9330aeb48a6b4725108e6f90fbbd3ae33f4d49ac058c",
    "cross_cats_sorted": [
      "cs.AR",
      "cs.NA",
      "math.IT",
      "stat.ME"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2016-05-27T01:19:46Z",
    "title_canon_sha256": "50dd97b0814fb524fc761d4c661978fcffcc993927078ef0a467995e8c0fd3c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.05562",
    "kind": "arxiv",
    "version": 1
  }
}