Pith Number

pith:NSTZS4X3

pith:2022:NSTZS4X3FIBDLUL7YROISMUSWD

not attested not anchored not stored refs pending

Supervised Contrastive CSI Representation Learning for Massive MIMO Positioning

Chuan Zhang, Jianzhao Zhang, Junquan Deng, Wei Shi, Xianyu Zhang

arxiv:2204.12796 v2 · 2022-04-27 · cs.IT · cs.LG · 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{NSTZS4X3FIBDLUL7YROISMUSWD}

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	2026-07-05T04:29:13.418205Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ca79972fb2a0235d17fc45c893292b0e4083af49f64d3ae74b221cbbd4d698d

Aliases

arxiv: 2204.12796 · arxiv_version: 2204.12796v2 · doi: 10.48550/arxiv.2204.12796 · pith_short_12: NSTZS4X3FIBD · pith_short_16: NSTZS4X3FIBDLUL7 · pith_short_8: NSTZS4X3

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/NSTZS4X3FIBDLUL7YROISMUSWD \
  | 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: 6ca79972fb2a0235d17fc45c893292b0e4083af49f64d3ae74b221cbbd4d698d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "76670e1358a97f6ae0596c544e79b51268d76bbbc3b2967de21036b97ffa82f2",
    "cross_cats_sorted": [
      "cs.LG",
      "math.IT"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2022-04-27T09:37:20Z",
    "title_canon_sha256": "8579af2a9f871f6ca26c6c06843b00ad23efdfa0b6c23e04e1a704440fa001ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2204.12796",
    "kind": "arxiv",
    "version": 2
  }
}