Pith Number

pith:K6JGDIIU

pith:2025:K6JGDIIUW6FE5O3URPR2ED7IXC

not attested not anchored not stored refs pending

AMP-based Joint Activity Detection and Channel Estimation for Massive Grant-Free Access in OFDM-based Wideband Systems

Danny H.K. Tsang, Ying Cui, Zhiyan Li

arxiv:2508.06540 v1 · 2025-08-05 · cs.IT · eess.SP · 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{K6JGDIIUW6FE5O3URPR2ED7IXC}

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	2026-07-05T11:52:03.694625Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

579261a114b78a4ebb748be3a20fe8b89ce8b8d216c749bfd96c189e6e96659a

Aliases

arxiv: 2508.06540 · arxiv_version: 2508.06540v1 · doi: 10.48550/arxiv.2508.06540 · pith_short_12: K6JGDIIUW6FE · pith_short_16: K6JGDIIUW6FE5O3U · pith_short_8: K6JGDIIU

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/K6JGDIIUW6FE5O3URPR2ED7IXC \
  | 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: 579261a114b78a4ebb748be3a20fe8b89ce8b8d216c749bfd96c189e6e96659a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "72c2ff1fe2f8f5e93e1ed11076113b8d703056f5adc3fdce08c841c6f58c979e",
    "cross_cats_sorted": [
      "eess.SP",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2025-08-05T08:58:09Z",
    "title_canon_sha256": "1e39081b5550b9459e80851adc2842e7afdee15e14b16adf3ae4075bf4927871"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.06540",
    "kind": "arxiv",
    "version": 1
  }
}