Pith Number

pith:CY5CVEHG

pith:2017:CY5CVEHG45CT67QLZ3EZ5K4AWU

not attested not anchored not stored refs pending

A Low-Cost Robust Distributed Linearly Constrained Beamformer for Wireless Acoustic Sensor Networks with Arbitrary Topology

Andreas I. Koutrouvelis, Richard C. Hendriks, Richard Heusdens, Thomas W. Sherson

arxiv:1712.08849 v2 · 2017-12-23 · eess.SP · 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{CY5CVEHG45CT67QLZ3EZ5K4AWU}

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	2026-05-17T23:45:04.825705Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

163a2a90e6e7453f7e0bcec99eab80b507edf0da5c2dd000cc78dbb75543a213

Aliases

arxiv: 1712.08849 · arxiv_version: 1712.08849v2 · doi: 10.48550/arxiv.1712.08849 · pith_short_12: CY5CVEHG45CT · pith_short_16: CY5CVEHG45CT67QL · pith_short_8: CY5CVEHG

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/CY5CVEHG45CT67QLZ3EZ5K4AWU \
  | 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: 163a2a90e6e7453f7e0bcec99eab80b507edf0da5c2dd000cc78dbb75543a213

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "942af1c1bc84ce1740237da223032cb2eec18daaa41253cf0b9ea07d466053dc",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2017-12-23T22:20:18Z",
    "title_canon_sha256": "4bb5975843e9344b5c72f49e78e6e7c8ef8d62969cf2ce07e8ea70d35c03933d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.08849",
    "kind": "arxiv",
    "version": 2
  }
}