Pith Number

pith:QNTDZHT6

pith:2015:QNTDZHT6MHA3AUSTCE3DO5QA27

not attested not anchored not stored refs pending

Triggering Wave-Like Convergence of Tail-biting Spatially Coupled LDPC Codes

Laurent Schmalen, Sebastian Cammerer, Stephan ten Brink, Vahid Aref

arxiv:1507.01970 v2 · 2015-07-07 · 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{QNTDZHT6MHA3AUSTCE3DO5QA27}

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	2026-05-18T01:24:18.800856Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83663c9e7e61c1b052531136377600d7e8ed20d2a35aa7fac916bce9bd949b88

Aliases

arxiv: 1507.01970 · arxiv_version: 1507.01970v2 · doi: 10.48550/arxiv.1507.01970 · pith_short_12: QNTDZHT6MHA3 · pith_short_16: QNTDZHT6MHA3AUST · pith_short_8: QNTDZHT6

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/QNTDZHT6MHA3AUSTCE3DO5QA27 \
  | 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: 83663c9e7e61c1b052531136377600d7e8ed20d2a35aa7fac916bce9bd949b88

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cd2a0e10423e068be6d86f8edb857a7ea779ca065ece2e1a6ac7ff4872e3cb3b",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-07-07T21:14:42Z",
    "title_canon_sha256": "8058717cd7504e83d1c409ae39d6b6f252d81ee955a40e2873f693d547cb7c78"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.01970",
    "kind": "arxiv",
    "version": 2
  }
}