Pith Number

pith:VUD22N2Z

pith:2020:VUD22N2Z536AQHPCSHA3TM7OM4

not attested not anchored not stored refs pending

Uplink Channel Estimation for Double-IRS Assisted Multi-User MIMO

Beixiong Zheng, Changsheng You, Rui Zhang

arxiv:2010.06155 v1 · 2020-10-13 · 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{VUD22N2Z536AQHPCSHA3TM7OM4}

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	2026-07-05T01:42:24.506638Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad07ad3759eefc081de291c1b9b3ee673acdbdf841fdc1cd248d688ac9efad43

Aliases

arxiv: 2010.06155 · arxiv_version: 2010.06155v1 · doi: 10.48550/arxiv.2010.06155 · pith_short_12: VUD22N2Z536A · pith_short_16: VUD22N2Z536AQHPC · pith_short_8: VUD22N2Z

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/VUD22N2Z536AQHPCSHA3TM7OM4 \
  | 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: ad07ad3759eefc081de291c1b9b3ee673acdbdf841fdc1cd248d688ac9efad43

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2167631291fd0b43a9954d37b3eaa59326d34209a35dc1c221c42ee773236000",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2020-10-13T03:58:19Z",
    "title_canon_sha256": "aecbdb4313461e35f11f3f478bc21f3626cfc858bb659b48d75a7179be041e3a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2010.06155",
    "kind": "arxiv",
    "version": 1
  }
}