Pith Number

pith:EFCWLKMU

pith:2008:EFCWLKMUPIGN2W4F7P6NRENZCQ

not attested not anchored not stored refs pending

OFDM based Distributed Space Time Coding for Asynchronous Relay Networks

B. Sundar Rajan, G. Susinder Rajan

arxiv:0804.2998 v2 · 2008-04-18 · 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{EFCWLKMUPIGN2W4F7P6NRENZCQ}

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	2026-05-18T00:59:11.835099Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

214565a9947a0cdd5b85fbfcd891b91409fe23e3b2f0ef03b2f41ac1bb95b4c0

Aliases

arxiv: 0804.2998 · arxiv_version: 0804.2998v2 · doi: 10.48550/arxiv.0804.2998 · pith_short_12: EFCWLKMUPIGN · pith_short_16: EFCWLKMUPIGN2W4F · pith_short_8: EFCWLKMU

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/EFCWLKMUPIGN2W4F7P6NRENZCQ \
  | 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: 214565a9947a0cdd5b85fbfcd891b91409fe23e3b2f0ef03b2f41ac1bb95b4c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f8a525f8d4ce8fb0f3c4f0cfc8d64ce2ea4c2547f111c4dc6f8efef78c502553",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2008-04-18T11:17:50Z",
    "title_canon_sha256": "d80d7ff4a6f1e5723737fa978f363f4a4a1929c406daf31e3a122161d8c1f3c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0804.2998",
    "kind": "arxiv",
    "version": 2
  }
}