Pith Number

pith:WTJ7U7QN

pith:2016:WTJ7U7QNWXB7UGLLHACQQ3XWHT

not attested not anchored not stored refs pending

Reliable recovery of hierarchically sparse signals for Gaussian and Kronecker product measurements

Axel Flinth, Gerhard Wunder, Ingo Roth, Jens Eisert, Martin Kliesch

arxiv:1612.07806 v4 · 2016-12-22 · cs.IT · math.IT · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WTJ7U7QNWXB7UGLLHACQQ3XWHT}

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	2026-07-05T01:36:56.287237Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4d3fa7e0db5c3fa196b3805086ef63cfde463a4ddff1d9485c7af7b162c618e

Aliases

arxiv: 1612.07806 · arxiv_version: 1612.07806v4 · doi: 10.48550/arxiv.1612.07806 · pith_short_12: WTJ7U7QNWXB7 · pith_short_16: WTJ7U7QNWXB7UGLL · pith_short_8: WTJ7U7QN

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/WTJ7U7QNWXB7UGLLHACQQ3XWHT \
  | 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: b4d3fa7e0db5c3fa196b3805086ef63cfde463a4ddff1d9485c7af7b162c618e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d69245e52455ff1a07f259f8280e8e398ba89cf1abca35f9151a4ee63b1a62cc",
    "cross_cats_sorted": [
      "math.IT",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2016-12-22T21:00:02Z",
    "title_canon_sha256": "c001d52a1bba93651d8828de9649394c3fa1ee422224fc810879678abcee20ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.07806",
    "kind": "arxiv",
    "version": 4
  }
}