Pith Number

pith:WRAABHHU

pith:2020:WRAABHHUEANA7XE3IGD4L2Y7EK

not attested not anchored not stored refs pending

Variable Rate Image Compression Method with Dead-zone Quantizer

Akira Nakagawa, Jing Zhou, Keizo Kato, Kimihiko Kazui, Sihan Wen, Zhiming Tan

arxiv:2004.05855 v2 · 2020-04-13 · eess.IV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WRAABHHUEANA7XE3IGD4L2Y7EK}

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	2026-07-05T00:58:09.573898Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b440009cf4201a0fdc9b4187c5eb1f22933c6a89e3120c593d4012cc473201a1

Aliases

arxiv: 2004.05855 · arxiv_version: 2004.05855v2 · doi: 10.48550/arxiv.2004.05855 · pith_short_12: WRAABHHUEANA · pith_short_16: WRAABHHUEANA7XE3 · pith_short_8: WRAABHHU

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/WRAABHHUEANA7XE3IGD4L2Y7EK \
  | 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: b440009cf4201a0fdc9b4187c5eb1f22933c6a89e3120c593d4012cc473201a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c10f2b13dce87e0b247b296d8c9f979acc616b14a4ce00f58e43a234c753db69",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2020-04-13T10:34:00Z",
    "title_canon_sha256": "0b748b525001477973aae1bcd8e3b0c0f5a62daacd65dfca0e7c912468f473ab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.05855",
    "kind": "arxiv",
    "version": 2
  }
}