Pith Number

pith:2H4QPN7N

pith:2016:2H4QPN7N5DR4YRY5BPZIHK7JOG

not attested not anchored not stored refs pending

HRTF-based two-dimensional robust least-squares frequency-invariant beamformer design for robot audition

Hendrik Barfuss, Jasper Podschus, Michael Buerger, Walter Kellermann

arxiv:1612.06151 v3 · 2016-12-19 · cs.SD

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2H4QPN7N5DR4YRY5BPZIHK7JOG}

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	2026-05-18T00:49:02.123110Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1f907b7ede8e3cc471d0bf283abe97184e07cfac489861d2420731622994a6c

Aliases

arxiv: 1612.06151 · arxiv_version: 1612.06151v3 · doi: 10.48550/arxiv.1612.06151 · pith_short_12: 2H4QPN7N5DR4 · pith_short_16: 2H4QPN7N5DR4YRY5 · pith_short_8: 2H4QPN7N

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/2H4QPN7N5DR4YRY5BPZIHK7JOG \
  | 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: d1f907b7ede8e3cc471d0bf283abe97184e07cfac489861d2420731622994a6c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "68eb05ccc15eb2eb54c19a5d130a6afbe6fe4155e75d1524503e1f30e5ea2ef6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SD",
    "submitted_at": "2016-12-19T12:19:25Z",
    "title_canon_sha256": "d55a32b543009bd661cec863229a91f15534ccee6cf5c329292fca96993be23a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.06151",
    "kind": "arxiv",
    "version": 3
  }
}