Pith Number

pith:KAH3TIYB

pith:2017:KAH3TIYBRLQTPO2J6JKG5LJXDI

not attested not anchored not stored refs pending

Wave-like Decoding of Tail-biting Spatially Coupled LDPC Codes Through Iterative Demapping

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

arxiv:1704.05408 v1 · 2017-04-18 · 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{KAH3TIYBRLQTPO2J6JKG5LJXDI}

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	2026-05-18T00:46:09.282922Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

500fb9a3018ae137bb49f2546ead371a3a37bd8dd9f84e241b7e9cbb6e91a947

Aliases

arxiv: 1704.05408 · arxiv_version: 1704.05408v1 · doi: 10.48550/arxiv.1704.05408 · pith_short_12: KAH3TIYBRLQT · pith_short_16: KAH3TIYBRLQTPO2J · pith_short_8: KAH3TIYB

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/KAH3TIYBRLQTPO2J6JKG5LJXDI \
  | 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: 500fb9a3018ae137bb49f2546ead371a3a37bd8dd9f84e241b7e9cbb6e91a947

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "32abb3df71efd210615dde3f99cfd63fb7623fd3805be15712a8b7ad6ed3d6ce",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2017-04-18T16:15:10Z",
    "title_canon_sha256": "fd136cc8a8db47389142c4da4f45b848a06195a8f749c902f4b02701f6380adb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.05408",
    "kind": "arxiv",
    "version": 1
  }
}