Pith Number

pith:XMIO2C4P

pith:2026:XMIO2C4PGBRWQNRIJWBQISDOXU

not attested not anchored not stored refs pending

Three-Dimensional Velocity Analysis and Particle Size Dynamics from Multi-Site RGB-Photometry of Noctilucent Clouds

Egor O. Ugolnikov, Oleg S. Ugolnikov, Olga Yu. Golubeva

arxiv:2605.21687 v1 · 2026-05-20 · physics.ao-ph · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XMIO2C4PGBRWQNRIJWBQISDOXU}

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	2026-05-22T01:03:28.143563Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb10ed0b8f30636836284d8304486ebd0f03358e3b7e7179d80214c05057f9dd

Aliases

arxiv: 2605.21687 · arxiv_version: 2605.21687v1 · doi: 10.48550/arxiv.2605.21687 · pith_short_12: XMIO2C4PGBRW · pith_short_16: XMIO2C4PGBRWQNRI · pith_short_8: XMIO2C4P

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/XMIO2C4PGBRWQNRIJWBQISDOXU \
  | 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: bb10ed0b8f30636836284d8304486ebd0f03358e3b7e7179d80214c05057f9dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "31728fca02414ca8017863cc8b7fd38d1b3e34a552fdb83754e7d763a5af6443",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ao-ph",
    "submitted_at": "2026-05-20T19:44:55Z",
    "title_canon_sha256": "3f8abf684ede70ca940715c0bebfd8ccfaa9fb5eca3b3044f56dd4fc887996ae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.21687",
    "kind": "arxiv",
    "version": 1
  }
}