Pith Number

pith:S53OOUFN

pith:2012:S53OOUFNT2WLJDKBDALXIUYRUP

not attested not anchored not stored refs pending

Improved Channel Estimation with Partial Sparse Constraint for AF Cooperative Communication Systems

Guan Gui, Wei Peng

arxiv:1207.6862 v1 · 2012-07-30 · 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{S53OOUFNT2WLJDKBDALXIUYRUP}

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	2026-05-18T03:49:48.412696Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9776e750ad9eacb48d411817745311a3d1fc9b0162f52174863b88cda48017c0

Aliases

arxiv: 1207.6862 · arxiv_version: 1207.6862v1 · doi: 10.48550/arxiv.1207.6862 · pith_short_12: S53OOUFNT2WL · pith_short_16: S53OOUFNT2WLJDKB · pith_short_8: S53OOUFN

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/S53OOUFNT2WLJDKBDALXIUYRUP \
  | 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: 9776e750ad9eacb48d411817745311a3d1fc9b0162f52174863b88cda48017c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "305b20f5bfe778973247a761de723e4a3755d2e0640f2944eee230f9016d880e",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-07-30T08:12:02Z",
    "title_canon_sha256": "2fac3392dcbd35ea0cfec6156c1c45279f2910b6080a4350a6ff743c8e3fb453"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.6862",
    "kind": "arxiv",
    "version": 1
  }
}