pith. sign in
Pith Number

pith:DFKK7IZ6

pith:2014:DFKK7IZ62WPZXBMDZ4OA3JJIAK
not attested not anchored not stored refs pending

A Rate-Distortion Approach to Index Coding

Aaron B. Wagner, Sinem Unal

arxiv:1402.0258 v2 · 2014-02-02 · cs.IT · math.IT

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{DFKK7IZ62WPZXBMDZ4OA3JJIAK}

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 2026-05-18T01:36:20.889809Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

1954afa33ed59f9b8583cf1c0da528029e0160ccdcd0e6495d381dac4fc0a4e6

Aliases

arxiv: 1402.0258 · arxiv_version: 1402.0258v2 · doi: 10.48550/arxiv.1402.0258 · pith_short_12: DFKK7IZ62WPZ · pith_short_16: DFKK7IZ62WPZXBMD · pith_short_8: DFKK7IZ6
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/DFKK7IZ62WPZXBMDZ4OA3JJIAK \
  | 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: 1954afa33ed59f9b8583cf1c0da528029e0160ccdcd0e6495d381dac4fc0a4e6
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "f04a886be6d892a08fe8a25e14cef5dffce3a631e5de136f15e4fc281b7b5b67",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2014-02-02T22:43:10Z",
    "title_canon_sha256": "723e2ee39b5b3294fc697c6879ff025565d2e6bf8f6a89a8f3c43429581f7ac0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.0258",
    "kind": "arxiv",
    "version": 2
  }
}