Pith Number

pith:M7ER63MO

pith:2011:M7ER63MOO4CCV572ERBPZGRWSX

not attested not anchored not stored refs pending

Maximum Rate of Unitary-Weight, Single-Symbol Decodable STBCs

B. Sundar Rajan, K. Pavan Srinath, Sanjay Karmakar

arxiv:1101.2516 v1 · 2011-01-13 · 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{M7ER63MOO4CCV572ERBPZGRWSX}

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	2026-05-18T00:58:19.167990Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67c91f6d8e77042af7fa2442fc9a3695df9c402a3fa8ec9f3dac450b4d51a2e2

Aliases

arxiv: 1101.2516 · arxiv_version: 1101.2516v1 · doi: 10.48550/arxiv.1101.2516 · pith_short_12: M7ER63MOO4CC · pith_short_16: M7ER63MOO4CCV572 · pith_short_8: M7ER63MO

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/M7ER63MOO4CCV572ERBPZGRWSX \
  | 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: 67c91f6d8e77042af7fa2442fc9a3695df9c402a3fa8ec9f3dac450b4d51a2e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "29158f58311bc77af10a463c0aed4c9ad9951be1ea0ad48a64f9c2c4f849d54d",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2011-01-13T09:41:47Z",
    "title_canon_sha256": "a2bc788fa6b61feb3c2fb6e34831ca8d236b1febf08834c427306a47b5b1203e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.2516",
    "kind": "arxiv",
    "version": 1
  }
}