Pith Number

pith:PCQL6QLT

pith:2011:PCQL6QLT7XXTJSMN3YYIWXHEPU

not attested not anchored not stored refs pending

Optimal Index Assignment for Multiple Description Scalar Quantization

Guoqiang Zhang, Janusz Klejsa, W. Bastiaan Kleijn

arxiv:1109.2543 v1 · 2011-09-12 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PCQL6QLT7XXTJSMN3YYIWXHEPU}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T04:13:37.406726Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78a0bf4173fdef34c98dde308b5ce47d00b6490522adeccd9a1f41df372c5dac

Aliases

arxiv: 1109.2543 · arxiv_version: 1109.2543v1 · doi: 10.48550/arxiv.1109.2543 · pith_short_12: PCQL6QLT7XXT · pith_short_16: PCQL6QLT7XXTJSMN · pith_short_8: PCQL6QLT

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/PCQL6QLT7XXTJSMN3YYIWXHEPU \
  | 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: 78a0bf4173fdef34c98dde308b5ce47d00b6490522adeccd9a1f41df372c5dac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "54dc90004fea347d9cf4d446debd00f9515fa24b39619e1a6ff533fc4a9962c0",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2011-09-12T17:31:40Z",
    "title_canon_sha256": "79fa86cfa8c15b7331523f001c19cb2bab9337edde88e158ef904bf9ea4afc1f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.2543",
    "kind": "arxiv",
    "version": 1
  }
}