Pith Number

pith:PM3FR44W

pith:2017:PM3FR44WBVUPDC6REVLDPGON3B

not attested not anchored not stored refs pending

FDD Massive MIMO Channel Estimation with Arbitrary 2D-Array Geometry

An Liu, Jisheng Dai, Vincent K. N. Lau

arxiv:1711.06548 v2 · 2017-11-12 · 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{PM3FR44WBVUPDC6REVLDPGON3B}

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	2026-05-18T00:22:39.221325Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b3658f3960d68f18bd125563799cdd8755c514e51e0dde0d7b776fb7ac786c8

Aliases

arxiv: 1711.06548 · arxiv_version: 1711.06548v2 · doi: 10.48550/arxiv.1711.06548 · pith_short_12: PM3FR44WBVUP · pith_short_16: PM3FR44WBVUPDC6R · pith_short_8: PM3FR44W

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/PM3FR44WBVUPDC6REVLDPGON3B \
  | 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: 7b3658f3960d68f18bd125563799cdd8755c514e51e0dde0d7b776fb7ac786c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff734a8a9b5534ad2b6b91d9f1dbfc7203eafdc2ef45809bae8dbc3d9adda468",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2017-11-12T12:22:02Z",
    "title_canon_sha256": "2cfa2554b1be67dfe9689aaa5601b2183fcdfd0c0373cab7101c975b32177c53"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.06548",
    "kind": "arxiv",
    "version": 2
  }
}