Pith Number

pith:VFGGZ6U7

pith:2009:VFGGZ6U76UY7JUBGEV5FBJ6OHN

not attested not anchored not stored refs pending

Low-Density Graph Codes for slow fading Relay Channels

Dieter Duyck, Joseph J. Boutros, Marc Moeneclaey

arxiv:0903.1502 v2 · 2009-03-09 · 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{VFGGZ6U76UY7JUBGEV5FBJ6OHN}

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	2026-05-18T03:44:04.873915Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a94c6cfa9ff531f4d026257a50a7ce3b712c6142f3576ea4f113af721e308819

Aliases

arxiv: 0903.1502 · arxiv_version: 0903.1502v2 · doi: 10.48550/arxiv.0903.1502 · pith_short_12: VFGGZ6U76UY7 · pith_short_16: VFGGZ6U76UY7JUBG · pith_short_8: VFGGZ6U7

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/VFGGZ6U76UY7JUBGEV5FBJ6OHN \
  | 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: a94c6cfa9ff531f4d026257a50a7ce3b712c6142f3576ea4f113af721e308819

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "17fe9dd7c58353227b91c70eadfc37ee8781c08d2aa7723648074e2dcd7e9270",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2009-03-09T09:42:24Z",
    "title_canon_sha256": "1fdca0c9be2bb687118a04b9e0e301e4d3da91b8ca9aa1574feaebbf06af44f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.1502",
    "kind": "arxiv",
    "version": 2
  }
}