Pith Number

pith:IPFNBELM

pith:2015:IPFNBELMD45TYIQ5HZXA5ZB5WA

not attested not anchored not stored refs pending

Sparse Spikes Deconvolution on Thin Grids

Gabriel Peyr\'e (CEREMADE), Vincent Duval (INRIA Paris-Rocquencourt)

arxiv:1503.08577 v1 · 2015-03-30 · cs.IT · math.IT · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IPFNBELMD45TYIQ5HZXA5ZB5WA}

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	2026-05-18T02:20:01.350135Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43cad0916c1f3b3c221d3e6e0ee43db03dfe617f640d79b51e8b5cfb8d4f3873

Aliases

arxiv: 1503.08577 · arxiv_version: 1503.08577v1 · doi: 10.48550/arxiv.1503.08577 · pith_short_12: IPFNBELMD45T · pith_short_16: IPFNBELMD45TYIQ5 · pith_short_8: IPFNBELM

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/IPFNBELMD45TYIQ5HZXA5ZB5WA \
  | 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: 43cad0916c1f3b3c221d3e6e0ee43db03dfe617f640d79b51e8b5cfb8d4f3873

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "33b75202795307b5a49898f1753865a40564af2f1ea0975c0081ec52d4114fad",
    "cross_cats_sorted": [
      "math.IT",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-03-30T07:53:07Z",
    "title_canon_sha256": "57c6d2efd5e9da5750c25b825d7e4612866f5a45327be618ffefaef852034505"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.08577",
    "kind": "arxiv",
    "version": 1
  }
}