Pith Number

pith:F5NVFWFZ

pith:2004:F5NVFWFZ3BXB2MPZWOE2C46C4J

not attested not anchored not stored refs pending

Capacity Achieving Code Constructions for Two Classes of (d,k) Constraints

Steven W. McLaughlin, Yogesh Sankarasubramaniam

arxiv:cs/0411006 v1 · 2004-11-03 · 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{F5NVFWFZ3BXB2MPZWOE2C46C4J}

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	2026-05-18T00:57:45.183521Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f5b52d8b9d86e1d31f9b389a173c2e257aafba6aa84a101d7c62da6ab934ae5

Aliases

arxiv: cs/0411006 · arxiv_version: cs/0411006v1 · doi: 10.48550/arxiv.cs/0411006 · pith_short_12: F5NVFWFZ3BXB · pith_short_16: F5NVFWFZ3BXB2MPZ · pith_short_8: F5NVFWFZ

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/F5NVFWFZ3BXB2MPZWOE2C46C4J \
  | 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: 2f5b52d8b9d86e1d31f9b389a173c2e257aafba6aa84a101d7c62da6ab934ae5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f8d19bd303cf82021c10a9d7b75d6f19a244874f46442790bf744c169f0967e0",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "",
    "primary_cat": "cs.IT",
    "submitted_at": "2004-11-03T19:20:11Z",
    "title_canon_sha256": "2f31260efe1100a13e3f6d2f7c058259ffd47d7396164a1a1317d6b03596ec10"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0411006",
    "kind": "arxiv",
    "version": 1
  }
}