Pith Number

pith:VUNDG6KN

pith:2019:VUNDG6KN6KL5V27LO72JYGWJZL

not attested not anchored not stored refs pending

Two-frequency approach to the theory of atmospheric acoustic-gravity waves

A.K. Fedorenko, E.I. Kryuchkov, O.K. Cheremnykh, Yu.O. Klymenko

arxiv:1908.07789 v1 · 2019-08-21 · physics.ao-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{VUNDG6KN6KL5V27LO72JYGWJZL}

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	2026-07-04T23:59:01.181361Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad1a33794df297daebeb77f49c1ac9caf81adba9833d7a878907ff7caf8255a7

Aliases

arxiv: 1908.07789 · arxiv_version: 1908.07789v1 · doi: 10.48550/arxiv.1908.07789 · pith_short_12: VUNDG6KN6KL5 · pith_short_16: VUNDG6KN6KL5V27L · pith_short_8: VUNDG6KN

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/VUNDG6KN6KL5V27LO72JYGWJZL \
  | 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: ad1a33794df297daebeb77f49c1ac9caf81adba9833d7a878907ff7caf8255a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cd90134e634377ea5b766045250746fd9a32b9cf11bb8709f0605de35fb61b42",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "physics.ao-ph",
    "submitted_at": "2019-08-21T10:52:17Z",
    "title_canon_sha256": "afa6f2f51a2b280e3d7c1566defde5ffa3487a3e07886e24093d9429badcdd76"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.07789",
    "kind": "arxiv",
    "version": 1
  }
}