Pith Number

pith:7LGXROTA

pith:2021:7LGXROTAP7GPOWDHQ44RZRKDKA

not attested not anchored not stored refs pending

Hierarchical compressed sensing

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

arxiv:2104.02721 v2 · 2021-04-06 · cs.IT · eess.SP · 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{7LGXROTAP7GPOWDHQ44RZRKDKA}

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	2026-07-05T03:38:59.651848Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

facd78ba607fccf7586787391cc543502011477c83e12c108f324cf83490a69a

Aliases

arxiv: 2104.02721 · arxiv_version: 2104.02721v2 · doi: 10.48550/arxiv.2104.02721 · pith_short_12: 7LGXROTAP7GP · pith_short_16: 7LGXROTAP7GPOWDH · pith_short_8: 7LGXROTA

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/7LGXROTAP7GPOWDHQ44RZRKDKA \
  | 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: facd78ba607fccf7586787391cc543502011477c83e12c108f324cf83490a69a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82b8e5098d0e66b502c014ed4e7dd6c672db814f4f3b3549c50663a0cfe21237",
    "cross_cats_sorted": [
      "eess.SP",
      "math.IT",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2021-04-06T18:00:01Z",
    "title_canon_sha256": "e873487f66a113e576153ed7143a8f0574d3e8429a48e5116f109cf28b3b0c5a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.02721",
    "kind": "arxiv",
    "version": 2
  }
}