Pith Number

pith:4U2TRJRW

pith:2018:4U2TRJRWY7OXVPUWOK3QN6HIMK

not attested not anchored not stored refs pending

Sparse Recovery of Fusion Frame Structured Signals

Ula\c{s} Ayaz

arxiv:1804.02079 v1 · 2018-04-05 · 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{4U2TRJRWY7OXVPUWOK3QN6HIMK}

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	2026-05-18T00:19:07.917174Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e53538a636c7dd7abe9672b706f8e86297732847ebb3b415e72254b3f9e88878

Aliases

arxiv: 1804.02079 · arxiv_version: 1804.02079v1 · doi: 10.48550/arxiv.1804.02079 · pith_short_12: 4U2TRJRWY7OX · pith_short_16: 4U2TRJRWY7OXVPUW · pith_short_8: 4U2TRJRW

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/4U2TRJRWY7OXVPUWOK3QN6HIMK \
  | 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: e53538a636c7dd7abe9672b706f8e86297732847ebb3b415e72254b3f9e88878

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e6b366cf6c0e6f3db86a6ffd5fde36ef79ba3cbd0b13b62b0cbc3310893c6cb",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2018-04-05T23:31:12Z",
    "title_canon_sha256": "6a130143593a4e4ddc7f711690343a5236ca02d3bc92bd94d51ec5470ece2930"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.02079",
    "kind": "arxiv",
    "version": 1
  }
}