Pith Number

pith:AHLDB3JQ

pith:2013:AHLDB3JQU7UHDF7LSUCJMRR3JE

not attested not anchored not stored refs pending

Sharp detection of smooth signals in a high-dimensional sparse matrix with indirect observations

Cristina Butucea, Ghislaine Gayraud

arxiv:1301.4660 v1 · 2013-01-20 · math.ST · stat.TH

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AHLDB3JQU7UHDF7LSUCJMRR3JE}

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	2026-05-18T03:35:56.003876Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

01d630ed30a7e87197eb950496463b493e21a292ed7165e884eb351d0ae2bab4

Aliases

arxiv: 1301.4660 · arxiv_version: 1301.4660v1 · doi: 10.48550/arxiv.1301.4660 · pith_short_12: AHLDB3JQU7UH · pith_short_16: AHLDB3JQU7UHDF7L · pith_short_8: AHLDB3JQ

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/AHLDB3JQU7UHDF7LSUCJMRR3JE \
  | 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: 01d630ed30a7e87197eb950496463b493e21a292ed7165e884eb351d0ae2bab4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9879167927d5b8b20fc27e1668bd3c06fc0ee94ba5020c3053c227186677cff",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2013-01-20T14:14:27Z",
    "title_canon_sha256": "44d9d2968ef20edddc811ba0b18c025cf6bece2eb1042b3f02047a0bd4281d92"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.4660",
    "kind": "arxiv",
    "version": 1
  }
}