Pith Number

pith:W64TYMPX

pith:2019:W64TYMPX67DMGDQGWNZ7AB2GIK

not attested not anchored not stored refs pending

Deep Learning based Downlink Channel Prediction for FDD Massive MIMO System

Feifei Gao, Geoffrey Ye Li, Mengnan Jian, Yuwen Yang

arxiv:1908.03360 v3 · 2019-08-09 · eess.SP · 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{W64TYMPX67DMGDQGWNZ7AB2GIK}

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	2026-07-04T23:59:34.483650Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7b93c31f7f7c6c30e06b373f007464287b6d17be12146ec411d0b71bd53de89

Aliases

arxiv: 1908.03360 · arxiv_version: 1908.03360v3 · doi: 10.48550/arxiv.1908.03360 · pith_short_12: W64TYMPX67DM · pith_short_16: W64TYMPX67DMGDQG · pith_short_8: W64TYMPX

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/W64TYMPX67DMGDQGWNZ7AB2GIK \
  | 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: b7b93c31f7f7c6c30e06b373f007464287b6d17be12146ec411d0b71bd53de89

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e344c638407841287fb4e2481d49d4f1f51b10f438350236e9d1c68d664584bf",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2019-08-09T08:22:10Z",
    "title_canon_sha256": "2f2f3a2bb431ce381400b0468ea0cbd55b74daae9d8b76ecc16f4787bcd8248f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.03360",
    "kind": "arxiv",
    "version": 3
  }
}