Pith Number

pith:VUMZJV5U

pith:2025:VUMZJV5UYZL3KDSTXSXRYUPYQD

not attested not anchored not stored refs pending

UltrasonicSpheres: Localized, Multi-Channel Sound Spheres Using Off-the-Shelf Speakers and Earables

Kathrin Gerling, Michael Beigl, Michael K\"uttner, Tobias R\"oddiger, Valeria Zitz

arxiv:2506.02715 v2 · 2025-06-03 · cs.SD · cs.HC · eess.AS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VUMZJV5UYZL3KDSTXSXRYUPYQD}

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	2026-07-05T11:32:29.964425Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad1994d7b4c657b50e53bcaf1c51f880d9e8cdd127131039307dee97ad4cd597

Aliases

arxiv: 2506.02715 · arxiv_version: 2506.02715v2 · doi: 10.48550/arxiv.2506.02715 · pith_short_12: VUMZJV5UYZL3 · pith_short_16: VUMZJV5UYZL3KDST · pith_short_8: VUMZJV5U

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/VUMZJV5UYZL3KDSTXSXRYUPYQD \
  | 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: ad1994d7b4c657b50e53bcaf1c51f880d9e8cdd127131039307dee97ad4cd597

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be474a5971c93252ef017aa01b479a3ff46d341e17287d538e642338f7ad6748",
    "cross_cats_sorted": [
      "cs.HC",
      "eess.AS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SD",
    "submitted_at": "2025-06-03T10:13:24Z",
    "title_canon_sha256": "7502d3f6d81e3d64c55dc866b15a162f97e681224b7cfb5c882de2dacd81de42"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.02715",
    "kind": "arxiv",
    "version": 2
  }
}