Pith Number

pith:Q6AYKZ4G

pith:2019:Q6AYKZ4GHQEKE3VEFNEL7IP46U

not attested not anchored not stored refs pending

Channel Estimation for Orthogonal Time Frequency Space (OTFS) Massive MIMO

Jianping An, jr, Linglong Dai, Pingzhi Fan, Robert W. Heath, Wenqian Shen

arxiv:1903.09441 v1 · 2019-03-22 · 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{Q6AYKZ4GHQEKE3VEFNEL7IP46U}

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	2026-05-17T23:42:32.390185Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87818567863c08a26ea42b48bfa1fcf52e09526854358d7da4604fa121320ae5

Aliases

arxiv: 1903.09441 · arxiv_version: 1903.09441v1 · doi: 10.48550/arxiv.1903.09441 · pith_short_12: Q6AYKZ4GHQEK · pith_short_16: Q6AYKZ4GHQEKE3VE · pith_short_8: Q6AYKZ4G

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/Q6AYKZ4GHQEKE3VEFNEL7IP46U \
  | 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: 87818567863c08a26ea42b48bfa1fcf52e09526854358d7da4604fa121320ae5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5fe43545f23a5f451b21ea15e948a96a43636e5bc4bc894eaeab5cc00e788e78",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2019-03-22T10:58:58Z",
    "title_canon_sha256": "dcb54c3013078b4a6ca7faee9ef9f1d9c782fd7b940c9644d81460ebcc354d7d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.09441",
    "kind": "arxiv",
    "version": 1
  }
}