Pith Number

pith:BAOPTZYS

pith:2015:BAOPTZYSV53H54NL5JMTTYD2SI

not attested not anchored not stored refs pending

Improved adaptive sparse channel estimation using mixed square/fourth error criterion

Guan Gui, Li Xu, Shinya Matsushita

arxiv:1503.00798 v1 · 2015-03-03 · 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{BAOPTZYSV53H54NL5JMTTYD2SI}

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	2026-05-18T02:25:48.374124Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

081cf9e712af767ef1abea5939e07a920b966644b1a42b6dba10c67b1728a68a

Aliases

arxiv: 1503.00798 · arxiv_version: 1503.00798v1 · doi: 10.48550/arxiv.1503.00798 · pith_short_12: BAOPTZYSV53H · pith_short_16: BAOPTZYSV53H54NL · pith_short_8: BAOPTZYS

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/BAOPTZYSV53H54NL5JMTTYD2SI \
  | 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: 081cf9e712af767ef1abea5939e07a920b966644b1a42b6dba10c67b1728a68a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7bc5c190085f2de9e736e939dfa627286bd8b9a1a214a2106bd2eb13d5daf66e",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-03-03T01:25:42Z",
    "title_canon_sha256": "6dbc346c49a5f1a9cffcc9a0fcfe4c8e24549ed2386f3a505139176ab0fcb20e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.00798",
    "kind": "arxiv",
    "version": 1
  }
}