Pith Number

pith:2X4WHIA4

pith:2012:2X4WHIA4KCMKXNW5LAE7OKEGHJ

not attested not anchored not stored refs pending

Greedy Adaptive Compression in Signal-Plus-Noise Models

Edwin K. P. Chong, Entao Liu, Louis L. Scharf

arxiv:1202.3913 v5 · 2012-02-17 · 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{2X4WHIA4KCMKXNW5LAE7OKEGHJ}

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	2026-05-18T03:48:35.473142Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5f963a01c5098abb6dd5809f728863a559d3a5f25697a9ca8aace9b43cd5607

Aliases

arxiv: 1202.3913 · arxiv_version: 1202.3913v5 · doi: 10.48550/arxiv.1202.3913 · pith_short_12: 2X4WHIA4KCMK · pith_short_16: 2X4WHIA4KCMKXNW5 · pith_short_8: 2X4WHIA4

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/2X4WHIA4KCMKXNW5LAE7OKEGHJ \
  | 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: d5f963a01c5098abb6dd5809f728863a559d3a5f25697a9ca8aace9b43cd5607

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3df58481b4591ef997dc99c469d277559eb02f8fac15b55523f63008924f62d6",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-02-17T14:07:27Z",
    "title_canon_sha256": "8b8824177cf2b143b84746abc4ba947d76bf5d90366a54972d908ee1ccf199b6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.3913",
    "kind": "arxiv",
    "version": 5
  }
}