Pith Number

pith:LLQNX5KJ

pith:2018:LLQNX5KJDLVII6BBUJPIRN2JQK

not attested not anchored not stored refs pending

Self-Noise modelling and acoustic scaling of an axial fan configured with rotating controlled diffusion blade

Behdad Davoudi, Scott C. Morris

arxiv:1812.10003 v1 · 2018-12-25 · physics.flu-dyn · physics.app-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LLQNX5KJDLVII6BBUJPIRN2JQK}

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	2026-05-17T23:54:28.098648Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ae0dbf5491aea847821a25e88b749829a1cec81ce54f14456cdf306ba25f3c2

Aliases

arxiv: 1812.10003 · arxiv_version: 1812.10003v1 · doi: 10.48550/arxiv.1812.10003 · pith_short_12: LLQNX5KJDLVI · pith_short_16: LLQNX5KJDLVII6BB · pith_short_8: LLQNX5KJ

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/LLQNX5KJDLVII6BBUJPIRN2JQK \
  | 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: 5ae0dbf5491aea847821a25e88b749829a1cec81ce54f14456cdf306ba25f3c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "315c13570f76a9576b6c497bb85ce1259c40134407d978f2879efa6a7b01c060",
    "cross_cats_sorted": [
      "physics.app-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2018-12-25T01:05:40Z",
    "title_canon_sha256": "f62e5e9295d3320134cb25c8bd8081b51e91ec233c76983b45c2ee6511e5c953"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.10003",
    "kind": "arxiv",
    "version": 1
  }
}