Pith Number

pith:XM4BNUWN

pith:2014:XM4BNUWNJFAJEF42AX4UZONSWE

not attested not anchored not stored refs pending

A DCT Approximation for Image Compression

F. M. Bayer, R. J. Cintra

arxiv:1402.6034 v1 · 2014-02-25 · cs.MM · cs.CV · 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{XM4BNUWNJFAJEF42AX4UZONSWE}

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	2026-05-18T02:57:51.807084Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb3816d2cd494092179a05f94cb9b2b11631de760ed8155f300fe6375edf92ef

Aliases

arxiv: 1402.6034 · arxiv_version: 1402.6034v1 · doi: 10.48550/arxiv.1402.6034 · pith_short_12: XM4BNUWNJFAJ · pith_short_16: XM4BNUWNJFAJEF42 · pith_short_8: XM4BNUWN

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/XM4BNUWNJFAJEF42AX4UZONSWE \
  | 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: bb3816d2cd494092179a05f94cb9b2b11631de760ed8155f300fe6375edf92ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0d7ee688885024f2a7dff0baf3516e6df01ea398ac84b0509f7533d5ed2e6907",
    "cross_cats_sorted": [
      "cs.CV",
      "stat.ME"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MM",
    "submitted_at": "2014-02-25T02:49:01Z",
    "title_canon_sha256": "688c9f4913fdd09fbef30d85fdee9eec188306b19386318ce7c589ea5776f174"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.6034",
    "kind": "arxiv",
    "version": 1
  }
}