Pith Number

pith:2BNBY5JI

pith:2014:2BNBY5JIAQFNOZKGSOEFQR37RG

not attested not anchored not stored refs pending

An acoustic space-time and the Lorentz transformation in aeroacoustics

Alastair Logan Gregory, Anurag Agarwal, Joan Lasenby, Samuel Sinayoko

arxiv:1403.7511 v3 · 2014-03-28 · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2BNBY5JIAQFNOZKGSOEFQR37RG}

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	2026-05-18T01:26:49.277992Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d05a1c7528040ad76546938858477f89b5a5353ddf9a3840fefed72608e7d067

Aliases

arxiv: 1403.7511 · arxiv_version: 1403.7511v3 · doi: 10.48550/arxiv.1403.7511 · pith_short_12: 2BNBY5JIAQFN · pith_short_16: 2BNBY5JIAQFNOZKG · pith_short_8: 2BNBY5JI

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/2BNBY5JIAQFNOZKGSOEFQR37RG \
  | 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: d05a1c7528040ad76546938858477f89b5a5353ddf9a3840fefed72608e7d067

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2135c44e9f00519ccb2ad7211727f5123fd7d38b96ed39bb1d4cc617ba9d4be7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2014-03-28T19:39:40Z",
    "title_canon_sha256": "a634dc2dd1380c02c5bcbc42169d72c637a531d66c6731886f7636e7aecf3fbb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.7511",
    "kind": "arxiv",
    "version": 3
  }
}