Pith Number

pith:TX4LYWZT

pith:2009:TX4LYWZTZFJRTLVJL64KYRXATD

not attested not anchored not stored refs pending

Xampling: Signal Acquisition and Processing in Union of Subspaces

Asaf Elron, Moshe Mishali, Yonina C. Eldar

arxiv:0911.0519 v3 · 2009-11-03 · 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{TX4LYWZTZFJRTLVJL64KYRXATD}

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	2026-05-18T00:58:19.914574Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9df8bc5b33c95319aea95fb8ac46e098e373e20dea12795f722c7b036f30efee

Aliases

arxiv: 0911.0519 · arxiv_version: 0911.0519v3 · doi: 10.48550/arxiv.0911.0519 · pith_short_12: TX4LYWZTZFJR · pith_short_16: TX4LYWZTZFJRTLVJ · pith_short_8: TX4LYWZT

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/TX4LYWZTZFJRTLVJL64KYRXATD \
  | 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: 9df8bc5b33c95319aea95fb8ac46e098e373e20dea12795f722c7b036f30efee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a0342aea06fa46eda9205b8050aa9a7186814372325f70f2136897f96f623ea1",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2009-11-03T09:06:03Z",
    "title_canon_sha256": "2ca5e83273140fb5c8915554ed775c6c0d04422c954919f4b1cc95ff2ebfc203"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.0519",
    "kind": "arxiv",
    "version": 3
  }
}