Pith Number

pith:FVBQDTCC

pith:2007:FVBQDTCCGCBHDKSQHDJTSYVHBM

not attested not anchored not stored refs pending

Writing on Dirty Paper with Resizing and its Application to Quasi-Static Fading Broadcast Channels

J. Nicholas Laneman, Shivaprasad Kotagiri, Wenyi Zhang

arxiv:0704.2786 v1 · 2007-04-20 · 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{FVBQDTCCGCBHDKSQHDJTSYVHBM}

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	2026-05-18T00:58:48.916396Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d4301cc42308271aa5038d33962a70b3c50c74f89dedcc1e72dfc58d713a8ff

Aliases

arxiv: 0704.2786 · arxiv_version: 0704.2786v1 · doi: 10.48550/arxiv.0704.2786 · pith_short_12: FVBQDTCCGCBH · pith_short_16: FVBQDTCCGCBHDKSQ · pith_short_8: FVBQDTCC

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/FVBQDTCCGCBHDKSQHDJTSYVHBM \
  | 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: 2d4301cc42308271aa5038d33962a70b3c50c74f89dedcc1e72dfc58d713a8ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21f5499e2769c8cc133e85961cbe01db91f2c2b72992e5d913975969bad39b6e",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "",
    "primary_cat": "cs.IT",
    "submitted_at": "2007-04-20T20:29:32Z",
    "title_canon_sha256": "1aabd4a8e6a97f3e1654ecafca1f57df9af948371c1b28147948fe086a7ab736"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0704.2786",
    "kind": "arxiv",
    "version": 1
  }
}