Pith Number

pith:SDJ63DFQ

pith:2020:SDJ63DFQUEKYXFGXSJU6HV22GT

not attested not anchored not stored refs pending

Using Double Contractions to Derive the Structure of Slice-Wise Multiplications of Tensors with Applications to Semi-Blind MIMO OFDM

Andr\'e L. F. de Almeida, Kristina Naskovska, Martin Haardt

arxiv:2001.06556 v1 · 2020-01-17 · 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{SDJ63DFQUEKYXFGXSJU6HV22GT}

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	2026-07-05T00:34:22.160248Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90d3ed8cb0a1158b94d79269e3d75a34d9a3db7d3f9deabe8f92f84e4789a6d4

Aliases

arxiv: 2001.06556 · arxiv_version: 2001.06556v1 · doi: 10.48550/arxiv.2001.06556 · pith_short_12: SDJ63DFQUEKY · pith_short_16: SDJ63DFQUEKYXFGX · pith_short_8: SDJ63DFQ

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/SDJ63DFQUEKYXFGXSJU6HV22GT \
  | 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: 90d3ed8cb0a1158b94d79269e3d75a34d9a3db7d3f9deabe8f92f84e4789a6d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b26e0dcf8ea2dda63e73ae1a3f08586f29fed2e05abfe7524092430c4123df48",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2020-01-17T23:40:39Z",
    "title_canon_sha256": "32f5a32aabbc56a8175d5edea64dc71dec9e615a2c792d69d20b64674a01a5ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.06556",
    "kind": "arxiv",
    "version": 1
  }
}