Pith Number

pith:DYADHXEN

pith:2019:DYADHXENB6YDG35SOCIO3P4XD4

not attested not anchored not stored refs pending

Channel Estimation for Ambient Backscatter Communication Systems with Massive-Antenna Reader

Gongpu Wang, Ruisi He, Saman Atapattu, Wenjing Zhao, Ying-Chang Liang

arxiv:1904.03458 v2 · 2019-04-06 · 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{DYADHXENB6YDG35SOCIO3P4XD4}

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	2026-05-17T23:41:53.162967Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e0033dc8d0fb0336fb27090edbf971f0912aea7d9be5f3a3a1f8a86e861b3e4

Aliases

arxiv: 1904.03458 · arxiv_version: 1904.03458v2 · doi: 10.48550/arxiv.1904.03458 · pith_short_12: DYADHXENB6YD · pith_short_16: DYADHXENB6YDG35S · pith_short_8: DYADHXEN

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/DYADHXENB6YDG35SOCIO3P4XD4 \
  | 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: 1e0033dc8d0fb0336fb27090edbf971f0912aea7d9be5f3a3a1f8a86e861b3e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79f219744d72620f60d76e9b5880a898aef6d52dc3fa329508d00cec29dbaee1",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2019-04-06T14:38:07Z",
    "title_canon_sha256": "e591c8ab903cd9dca63ba772740513b49fb60d290b6f228abe40ef1be3cce73c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.03458",
    "kind": "arxiv",
    "version": 2
  }
}