Pith Number

pith:KPDHUH5B

pith:2019:KPDHUH5BCOWYVUS6UOOG22RRTP

not attested not anchored not stored refs pending

Active Sampling for Approximately Bandlimited Graph Signals

Bo Hu, Hui Feng, Sijie Lin, Xuan Xie

arxiv:1902.04265 v2 · 2019-02-12 · eess.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KPDHUH5BCOWYVUS6UOOG22RRTP}

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	2026-05-17T23:53:49.280434Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

53c67a1fa113ad8ad25ea39c6d6a319bd043ae1ed5288a0b886e1c52a4202bd7

Aliases

arxiv: 1902.04265 · arxiv_version: 1902.04265v2 · doi: 10.48550/arxiv.1902.04265 · pith_short_12: KPDHUH5BCOWY · pith_short_16: KPDHUH5BCOWYVUS6 · pith_short_8: KPDHUH5B

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/KPDHUH5BCOWYVUS6UOOG22RRTP \
  | 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: 53c67a1fa113ad8ad25ea39c6d6a319bd043ae1ed5288a0b886e1c52a4202bd7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "660562076fea006c0c7cc88ee981ee04bbff5175024a09e5d25a147b9436dcc3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2019-02-12T07:40:14Z",
    "title_canon_sha256": "4e0b46d2f736ca912faa7690ab5c53c06fa4f6ae4977146023b9048584f47680"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.04265",
    "kind": "arxiv",
    "version": 2
  }
}