Pith Number

pith:CFPAKRB4

pith:2018:CFPAKRB4VJB6V5KFKLWAMK4QRL

not attested not anchored not stored refs pending

High-precision timing and frequency synchronization method for MIMO-OFDM systems in double-selective channels

Dongtang Ma, Jibo Wei, Jun Liu, Kai Mei, Xiaochen Zhang, Xiaoying Zhang

arxiv:1811.07445 v1 · 2018-11-19 · eess.SP · cs.IT · math.IT

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

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	2026-05-18T00:00:12.578795Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

115e05443caa43eaf54552ec062b908afc0257b5b1ea572c7ed2c77ce06b692f

Aliases

arxiv: 1811.07445 · arxiv_version: 1811.07445v1 · doi: 10.48550/arxiv.1811.07445 · pith_short_12: CFPAKRB4VJB6 · pith_short_16: CFPAKRB4VJB6V5KF · pith_short_8: CFPAKRB4

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/CFPAKRB4VJB6V5KFKLWAMK4QRL \
  | 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: 115e05443caa43eaf54552ec062b908afc0257b5b1ea572c7ed2c77ce06b692f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c898a6980664a61b8635ab64c2c0bd266d2c5a779e01d1535afc1cd5f07711a2",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2018-11-19T00:59:18Z",
    "title_canon_sha256": "2b2a969454924c5e3ebbf49093ce64362d9e443965e80fd68ce6ef75c457ab74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.07445",
    "kind": "arxiv",
    "version": 1
  }
}