Pith Number

pith:4ZLYE7IU

pith:2018:4ZLYE7IUDYMAPM5AJWXYERST6K

not attested not anchored not stored refs pending

Asymptotically Optimal Estimation Algorithm for the Sparse Signal with Arbitrary Distributions

Chau Yuen, Chongwen Huang, Lei Liu

arxiv:1807.07200 v1 · 2018-07-19 · 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{4ZLYE7IUDYMAPM5AJWXYERST6K}

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	2026-05-18T00:10:20.927653Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e657827d141e1807b3a04daf824653f29ae099125717fb93091d0bac0c234e0d

Aliases

arxiv: 1807.07200 · arxiv_version: 1807.07200v1 · doi: 10.48550/arxiv.1807.07200 · pith_short_12: 4ZLYE7IUDYMA · pith_short_16: 4ZLYE7IUDYMAPM5A · pith_short_8: 4ZLYE7IU

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/4ZLYE7IUDYMAPM5AJWXYERST6K \
  | 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: e657827d141e1807b3a04daf824653f29ae099125717fb93091d0bac0c234e0d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "487cf7e34aa428d87caef6bb15e76df7949a39591c4e7dad3e89c8a1aab0fc7a",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2018-07-19T00:45:23Z",
    "title_canon_sha256": "2433c1ea50b340a32332b6f1a94841960e2720aca0ccda233527227d6f3b8c20"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.07200",
    "kind": "arxiv",
    "version": 1
  }
}