Pith Number

pith:7V4YQEXR

pith:2018:7V4YQEXRQZDYHXS2OYDI5GG2NR

not attested not anchored not stored refs pending

Reversible Video Data Hiding Using Zero QDCT Coefficient-Pairs

Hanzhou Wu, Hongxia Wang, Yi Chen, Yong Liu

arxiv:1804.06628 v2 · 2018-04-18 · cs.MM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7V4YQEXRQZDYHXS2OYDI5GG2NR}

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	2026-05-17T23:47:40.045046Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd798812f1864783de5a76068e98da6c5d10bedffa02e26657fcb8efb349f22d

Aliases

arxiv: 1804.06628 · arxiv_version: 1804.06628v2 · doi: 10.48550/arxiv.1804.06628 · pith_short_12: 7V4YQEXRQZDY · pith_short_16: 7V4YQEXRQZDYHXS2 · pith_short_8: 7V4YQEXR

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/7V4YQEXRQZDYHXS2OYDI5GG2NR \
  | 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: fd798812f1864783de5a76068e98da6c5d10bedffa02e26657fcb8efb349f22d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79fe3d5382fad3675baa9a5b32a62e66526a6649d44035e48c136e28cc8e408b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MM",
    "submitted_at": "2018-04-18T10:04:40Z",
    "title_canon_sha256": "724e449b6390f516cc73adf8b3c62e4335107ecb48b7c79aa5aa6451aa56b337"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.06628",
    "kind": "arxiv",
    "version": 2
  }
}