Pith Number

pith:X7UUNTGR

pith:2011:X7UUNTGRM75GA6JYVVA6HPPYXK

not attested not anchored not stored refs pending

Universality for the Noisy Slepian-Wolf Problem Via Spatial Coupling

Arvind Yedla, Henry D. Pfister, Krishna Narayanan

arxiv:1105.6374 v1 · 2011-05-31 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{X7UUNTGRM75GA6JYVVA6HPPYXK}

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	2026-05-18T04:20:59.621723Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bfe946ccd167fa607938ad41e3bdf8ba9efee1727cb8b5324d47dbfb2e4bae81

Aliases

arxiv: 1105.6374 · arxiv_version: 1105.6374v1 · doi: 10.48550/arxiv.1105.6374 · pith_short_12: X7UUNTGRM75G · pith_short_16: X7UUNTGRM75GA6JY · pith_short_8: X7UUNTGR

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/X7UUNTGRM75GA6JYVVA6HPPYXK \
  | 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: bfe946ccd167fa607938ad41e3bdf8ba9efee1727cb8b5324d47dbfb2e4bae81

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "324d2306dc916be4cdb0fccbcc0ac505a8fc6976e6bf2b184f2ff8e4932622af",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2011-05-31T19:48:17Z",
    "title_canon_sha256": "208018d2442d05be914a309f647bf96037c8c2108c5825885728857d7a6b3c54"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.6374",
    "kind": "arxiv",
    "version": 1
  }
}