Pith Number

pith:SM7EP45G

pith:2017:SM7EP45GOC4574I3WNT3OPXOPJ

not attested not anchored not stored refs pending

DCT-like Transform for Image Compression Requires 14 Additions Only

F. M. Bayer, R. J. Cintra

arxiv:1702.00817 v1 · 2017-02-02 · cs.MM · cs.DS · stat.AP · stat.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SM7EP45GOC4574I3WNT3OPXOPJ}

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	2026-05-18T00:51:29.709238Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

933e47f3a670b9dff11bb367b73eee7a62fea50eeaaec3d9f6a12ef6f2aded91

Aliases

arxiv: 1702.00817 · arxiv_version: 1702.00817v1 · doi: 10.48550/arxiv.1702.00817 · pith_short_12: SM7EP45GOC45 · pith_short_16: SM7EP45GOC4574I3 · pith_short_8: SM7EP45G

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/SM7EP45GOC4574I3WNT3OPXOPJ \
  | 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: 933e47f3a670b9dff11bb367b73eee7a62fea50eeaaec3d9f6a12ef6f2aded91

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2596977e00a7641460cbb78578c65bdcd52f07febcbf38b707808c8e9b5fb462",
    "cross_cats_sorted": [
      "cs.DS",
      "stat.AP",
      "stat.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MM",
    "submitted_at": "2017-02-02T20:08:42Z",
    "title_canon_sha256": "e5254eb96d0e4d6fbe07b30e7a534738102ba254c6073a074c25a37365db1718"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.00817",
    "kind": "arxiv",
    "version": 1
  }
}