Pith Number

pith:PU4EWJDJ

pith:2021:PU4EWJDJOEGES2I22TZFTWCD6A

not attested not anchored not stored refs pending

Frequency-packed Faster-than-Nyquist Signaling via Symbol-level Precoding for Multi-user MISO Redundant Transmissions

Bj\"orn Ottersten, Symeon Chatzinotas, Wallace A. Martins

arxiv:2107.06962 v1 · 2021-07-14 · eess.SP · 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{PU4EWJDJOEGES2I22TZFTWCD6A}

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	2026-07-05T02:58:08.648344Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d384b2469710c49691ad4f259d843f018e913638e087ff78e5125530394aa5c

Aliases

arxiv: 2107.06962 · arxiv_version: 2107.06962v1 · doi: 10.48550/arxiv.2107.06962 · pith_short_12: PU4EWJDJOEGE · pith_short_16: PU4EWJDJOEGES2I2 · pith_short_8: PU4EWJDJ

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/PU4EWJDJOEGES2I22TZFTWCD6A \
  | 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: 7d384b2469710c49691ad4f259d843f018e913638e087ff78e5125530394aa5c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4147a25d3a74795ed483d222e6a1b289311f4d5d8184ae6e3f067bbedcb4fc5",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2021-07-14T19:47:38Z",
    "title_canon_sha256": "c3f0d23dc5ced8460bba13a4717632798df8831b3cbf3ddae62827c3864fb62a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.06962",
    "kind": "arxiv",
    "version": 1
  }
}