Pith Number

pith:NGNETVNE

pith:2009:NGNETVNEBBKEMQAXR5LW3LKJRK

not attested not anchored not stored refs pending

Scattering of Sound Waves by a Canonical Acoustic Hole

Ednilton S. Oliveira, Lu\'is C. B. Crispino, Sam R. Dolan

arxiv:0904.0010 v2 · 2009-03-31 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NGNETVNEBBKEMQAXR5LW3LKJRK}

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.

Cited by

1 paper in Pith

Total transmission modes in draining bathtub model with vorticity

Receipt and verification

First computed	2026-07-04T17:26:55.738443Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

699a49d5a408544640178f576dad498a801ba05cc487e9796d515a70d8ce8504

Aliases

arxiv: 0904.0010 · arxiv_version: 0904.0010v2 · doi: 10.48550/arxiv.0904.0010 · pith_short_12: NGNETVNEBBKE · pith_short_16: NGNETVNEBBKEMQAX · pith_short_8: NGNETVNE

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/NGNETVNEBBKEMQAXR5LW3LKJRK \
  | 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: 699a49d5a408544640178f576dad498a801ba05cc487e9796d515a70d8ce8504

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0a4e0fb45ee256b47b390dd357ff6b44b69b6e2bea1930406650324c55ea94a6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2009-03-31T20:15:27Z",
    "title_canon_sha256": "b029a629fb64e02e9997c18a7be203eac80b44a9958d7f76fe9d24b2cd8af848"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.0010",
    "kind": "arxiv",
    "version": 2
  }
}