Pith Number

pith:PWM3WS3O

pith:2020:PWM3WS3OR3WGTDROG6QFDWHQHZ

not attested not anchored not stored refs pending

Deep Residual Learning-Assisted Channel Estimation in Ambient Backscatter Communications

Branka Vucetic, Chang Liu, Derrick Wing Kwan Ng, Xuemeng Liu, Yonghui Li

arxiv:2009.07468 v1 · 2020-09-16 · 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{PWM3WS3OR3WGTDROG6QFDWHQHZ}

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	2026-07-05T01:35:52.847231Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d99bb4b6e8eec698e2e37a051d8f03e5a3c4c8f4c7be258bfcbfb6d02763592

Aliases

arxiv: 2009.07468 · arxiv_version: 2009.07468v1 · doi: 10.48550/arxiv.2009.07468 · pith_short_12: PWM3WS3OR3WG · pith_short_16: PWM3WS3OR3WGTDRO · pith_short_8: PWM3WS3O

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/PWM3WS3OR3WGTDROG6QFDWHQHZ \
  | 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: 7d99bb4b6e8eec698e2e37a051d8f03e5a3c4c8f4c7be258bfcbfb6d02763592

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c2ac5f764bf68cbf4061ad9c15b6bf6adf9a1af57a2d133a417268fffd6850c7",
    "cross_cats_sorted": [
      "eess.SP",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2020-09-16T04:41:49Z",
    "title_canon_sha256": "4df9690d151e6cd2db9c5ad0fd28bfe6918f42f8040dc6ae47ce090ac2696cea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.07468",
    "kind": "arxiv",
    "version": 1
  }
}