Pith Number

pith:TK7G3WPQ

pith:2021:TK7G3WPQCE6LBQU4DHPCWJSDJO

not attested not anchored not stored refs pending

Hierarchical sparse recovery from hierarchically structured measurements with application to massive random access

Axel Flinth, Benedikt Gro{\ss}, Gerhard Wunder, Ingo Roth, Jens Eisert

arxiv:2105.03169 v1 · 2021-05-07 · cs.IT · eess.SP · 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{TK7G3WPQCE6LBQU4DHPCWJSDJO}

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	2026-07-05T02:38:22.353002Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9abe6dd9f0113cb0c29c19de2b26434bab0160b3d9772f65cecc2b2766738a6b

Aliases

arxiv: 2105.03169 · arxiv_version: 2105.03169v1 · doi: 10.48550/arxiv.2105.03169 · pith_short_12: TK7G3WPQCE6L · pith_short_16: TK7G3WPQCE6LBQU4 · pith_short_8: TK7G3WPQ

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/TK7G3WPQCE6LBQU4DHPCWJSDJO \
  | 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: 9abe6dd9f0113cb0c29c19de2b26434bab0160b3d9772f65cecc2b2766738a6b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b089d2fc7c63dcb93aa510ecb2b01464f5a6d73e1284d360853ca333bf0a15ce",
    "cross_cats_sorted": [
      "eess.SP",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2021-05-07T11:27:22Z",
    "title_canon_sha256": "13eff0c903be73a9375ae7f570f584f46116777879048b25e5ce3e2b3d16b8eb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.03169",
    "kind": "arxiv",
    "version": 1
  }
}