Pith Number

pith:572GPEIQ

pith:2020:572GPEIQHLEVO3X67AEBSQ2UUA

not attested not anchored not stored refs pending

Fast Channel Estimation for IRS-Assisted OFDM

Beixiong Zheng, Changsheng You, Rui Zhang

arxiv:2008.04476 v1 · 2020-08-11 · 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{572GPEIQHLEVO3X67AEBSQ2UUA}

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	2026-07-05T01:26:25.346534Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eff46791103ac9576efef808194354a01c4571e5420d1639c1528001428c6ca2

Aliases

arxiv: 2008.04476 · arxiv_version: 2008.04476v1 · doi: 10.48550/arxiv.2008.04476 · pith_short_12: 572GPEIQHLEV · pith_short_16: 572GPEIQHLEVO3X6 · pith_short_8: 572GPEIQ

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/572GPEIQHLEVO3X67AEBSQ2UUA \
  | 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: eff46791103ac9576efef808194354a01c4571e5420d1639c1528001428c6ca2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d09ef132f115805b94dcd78c2469067db280534488cca3a52e0e3a5b7558ead",
    "cross_cats_sorted": [
      "eess.SP",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2020-08-11T02:01:12Z",
    "title_canon_sha256": "08f7071fc58fa557f024bdf9bd4558bbea55ef2c5bbc1d88193c981bc6afdeba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2008.04476",
    "kind": "arxiv",
    "version": 1
  }
}