Pith Number

pith:QQFUJGUW

pith:2011:QQFUJGUWOP3S3HVOCHRQEOOTRC

not attested not anchored not stored refs pending

Spatially-Coupled Codes and Threshold Saturation on Intersymbol-Interference Channels

Arvind Yedla, Henry D. Pfister, Krishna R. Narayanan, Phong S. Nguyen

arxiv:1107.3253 v2 · 2011-07-16 · 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{QQFUJGUWOP3S3HVOCHRQEOOTRC}

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	2026-05-18T04:11:17.715538Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

840b449a9673f72d9eae11e30239d38890fc9c3a274b41cc8115c5fa1624c4a7

Aliases

arxiv: 1107.3253 · arxiv_version: 1107.3253v2 · doi: 10.48550/arxiv.1107.3253 · pith_short_12: QQFUJGUWOP3S · pith_short_16: QQFUJGUWOP3S3HVO · pith_short_8: QQFUJGUW

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/QQFUJGUWOP3S3HVOCHRQEOOTRC \
  | 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: 840b449a9673f72d9eae11e30239d38890fc9c3a274b41cc8115c5fa1624c4a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e55d36841fbdb67e95a0f1fba552392ebf559c87f1eadc2dc81614f841996ac0",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2011-07-16T20:24:31Z",
    "title_canon_sha256": "503888d7f6809fe98699a17b28a4c85b7690be5523903f6f00996074f45be708"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.3253",
    "kind": "arxiv",
    "version": 2
  }
}