Pith Number

pith:KM77W3UU

pith:2012:KM77W3UUEFEHHRCLLL2YQNU73G

not attested not anchored not stored refs pending

A Novel Video Compression Approach Based on Underdetermined Blind Source Separation

Fei Qiao, Huazhong Yang, Jing Liu, Qi Wei

arxiv:1205.4572 v1 · 2012-05-21 · 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{KM77W3UUEFEHHRCLLL2YQNU73G}

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	2026-05-18T03:55:12.900282Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

533ffb6e94214873c44b5af588369fd99b8a5c7adf46eb766b326cded30334d4

Aliases

arxiv: 1205.4572 · arxiv_version: 1205.4572v1 · doi: 10.48550/arxiv.1205.4572 · pith_short_12: KM77W3UUEFEH · pith_short_16: KM77W3UUEFEHHRCL · pith_short_8: KM77W3UU

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/KM77W3UUEFEHHRCLLL2YQNU73G \
  | 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: 533ffb6e94214873c44b5af588369fd99b8a5c7adf46eb766b326cded30334d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4c615996ef00a52c1183c2f6777b63440d0fa59e2237996a4a7ac6843be0f57",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MM",
    "submitted_at": "2012-05-21T11:57:55Z",
    "title_canon_sha256": "83ead27e9b31a411e40519af17d690431f2ccf7929656e8863ca31939ac1776b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.4572",
    "kind": "arxiv",
    "version": 1
  }
}