Pith Number

pith:7V6Q2MQ2

pith:2015:7V6Q2MQ2VPQQTCXQO4QF4ISSLV

not attested not anchored not stored refs pending

On the Total-Power Capacity of Regular-LDPC Codes with Iterative Message-Passing Decoders

Andrea Goldsmith, Jan Rabaey, Karthik Ganesan, Pulkit Grover

arxiv:1504.01019 v3 · 2015-04-04 · 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{7V6Q2MQ2VPQQTCXQO4QF4ISSLV}

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	2026-05-18T00:19:47.986277Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd7d0d321aabe1098af077205e22525d57304373426dc9e31a7c929f26641606

Aliases

arxiv: 1504.01019 · arxiv_version: 1504.01019v3 · doi: 10.48550/arxiv.1504.01019 · pith_short_12: 7V6Q2MQ2VPQQ · pith_short_16: 7V6Q2MQ2VPQQTCXQ · pith_short_8: 7V6Q2MQ2

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/7V6Q2MQ2VPQQTCXQO4QF4ISSLV \
  | 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: fd7d0d321aabe1098af077205e22525d57304373426dc9e31a7c929f26641606

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9fff3508f93dd2369d28d22a5e14b64771fe85a80d09ec5d62f34dfd07f2b06e",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-04-04T16:43:04Z",
    "title_canon_sha256": "10bc9069f165cd5a0facd5c389ccb045dbb19ece7d3553b1d2886321ac36a4bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.01019",
    "kind": "arxiv",
    "version": 3
  }
}