Pith Number

pith:MY2NNCUP

pith:2017:MY2NNCUPTE3Z4NUEAH3KQ7T7PZ

not attested not anchored not stored refs pending

A Joint Code-Frequency Index Modulation for Low-complexity, High Spectral and Energy Efficiency Communications

Ebrahim Soujeri, Francois Gagnon, Georges Kaddoum, Minh Au

arxiv:1712.07951 v1 · 2017-12-07 · eess.SP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MY2NNCUPTE3Z4NUEAH3KQ7T7PZ}

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	2026-05-18T00:27:29.244674Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6634d68a8f99379e368401f6a87e7f7e763a84dc8c8876f60d9c7c5138cb7998

Aliases

arxiv: 1712.07951 · arxiv_version: 1712.07951v1 · doi: 10.48550/arxiv.1712.07951 · pith_short_12: MY2NNCUPTE3Z · pith_short_16: MY2NNCUPTE3Z4NUE · pith_short_8: MY2NNCUP

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/MY2NNCUPTE3Z4NUEAH3KQ7T7PZ \
  | 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: 6634d68a8f99379e368401f6a87e7f7e763a84dc8c8876f60d9c7c5138cb7998

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "33c37e4d94048c09aa17234a231e1e4906a66890af1a3552235f272c14cc0f84",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2017-12-07T14:17:05Z",
    "title_canon_sha256": "6dad651d521aad56664aaf9348c71f9916b1d9f80faad16cd4ef25916082060c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.07951",
    "kind": "arxiv",
    "version": 1
  }
}