Pith Number

pith:4ELVE7G4

pith:2018:4ELVE7G4D52IGRVOOZR76MK5SP

not attested not anchored not stored refs pending

Spatially coupled turbo-like codes: a new trade-off between waterfall and error floor

Alexandre Graell i Amat, Michael Lentmaier, Saeedeh Moloudi

arxiv:1804.01706 v1 · 2018-04-05 · 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{4ELVE7G4D52IGRVOOZR76MK5SP}

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	2026-05-18T00:19:10.255722Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e117527cdc1f748346ae7663ff315d93ec789bb9a03b2c4937681d16acfc5fd1

Aliases

arxiv: 1804.01706 · arxiv_version: 1804.01706v1 · doi: 10.48550/arxiv.1804.01706 · pith_short_12: 4ELVE7G4D52I · pith_short_16: 4ELVE7G4D52IGRVO · pith_short_8: 4ELVE7G4

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/4ELVE7G4D52IGRVOOZR76MK5SP \
  | 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: e117527cdc1f748346ae7663ff315d93ec789bb9a03b2c4937681d16acfc5fd1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9fdce6fb47abb2a3a8cb07ecfb25dbc6e7553956b7496b4df61e4f1e41082df4",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2018-04-05T07:36:00Z",
    "title_canon_sha256": "a1b068c36a7d0074e3402dd01aa5b9b592cf39474d898c7716357aaca434a52e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.01706",
    "kind": "arxiv",
    "version": 1
  }
}