Pith Number

pith:G2HV4N7O

pith:2017:G2HV4N7OUVVWW75SNX5RVMNZAE

not attested not anchored not stored refs pending

High Rate LDPC Codes from Difference Covering Arrays

A. Rao, D. Donovan, E. \c{S}ule Yaz{\i}c{\i}

arxiv:1701.05686 v1 · 2017-01-20 · math.CO · 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{G2HV4N7OUVVWW75SNX5RVMNZAE}

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	2026-05-18T00:52:28.796538Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

368f5e37eea56b6b7fb26dfb1ab1b9012c3ff48ffd73c37806f78bee3c6f5de5

Aliases

arxiv: 1701.05686 · arxiv_version: 1701.05686v1 · doi: 10.48550/arxiv.1701.05686 · pith_short_12: G2HV4N7OUVVW · pith_short_16: G2HV4N7OUVVWW75S · pith_short_8: G2HV4N7O

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/G2HV4N7OUVVWW75SNX5RVMNZAE \
  | 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: 368f5e37eea56b6b7fb26dfb1ab1b9012c3ff48ffd73c37806f78bee3c6f5de5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a0a192306e616af9f039465616c208a8965909d20bdc837eb5868d69d46c4240",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-01-20T04:30:53Z",
    "title_canon_sha256": "0f14cb06dc8d2a614eb057a69556c8ceb4180ede6e8a64d1218320270c07010f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.05686",
    "kind": "arxiv",
    "version": 1
  }
}