Pith Number

pith:MMQ655KO

pith:2020:MMQ655KORN7AHJB2F76TA4W5O7

not attested not anchored not stored refs pending

Classification of High-resolution Solar H{\alpha} Spectra using t-distributed Stochastic Neighbor Embedding

Andrea Diercke, Carsten Denker, Christoph Kuckein, Ekaterina Dineva, Gal Matijevi\v{c}, Horst Balthasar, Ioannis Kontogiannis, Meetu Verma, Partha S. Pal, Robert Kamlah

arxiv:2011.13214 v1 · 2020-11-26 · astro-ph.SR · 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{MMQ655KORN7AHJB2F76TA4W5O7}

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	2026-07-05T02:23:19.695395Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6321eef54e8b7e03a43a2ffd3072dd77e6195550d9b1605b877ca4d462f26b59

Aliases

arxiv: 2011.13214 · arxiv_version: 2011.13214v1 · doi: 10.48550/arxiv.2011.13214 · pith_short_12: MMQ655KORN7A · pith_short_16: MMQ655KORN7AHJB2 · pith_short_8: MMQ655KO

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/MMQ655KORN7AHJB2F76TA4W5O7 \
  | 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: 6321eef54e8b7e03a43a2ffd3072dd77e6195550d9b1605b877ca4d462f26b59

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cfddf89dffe9bf1cce6242c4df64e55f1d4784acaada51a56eaad89221bda574",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2020-11-26T10:17:12Z",
    "title_canon_sha256": "ce36dd352265fa38dbd2b124590a92761c11b7027d031a4460e297610b1ec8ae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2011.13214",
    "kind": "arxiv",
    "version": 1
  }
}