Pith Number

pith:WER6KVRI

pith:2019:WER6KVRIDZKPMQAJYPRUTSCR43

not attested not anchored not stored refs pending

Spectrally resolved cosmic ray hydrodynamics -- I. Spectral scheme

Christoph Pfrommer, Michal Hanasz, Philipp Girichidis, Thorsten Naab

arxiv:1909.12840 v2 · 2019-09-27 · astro-ph.HE · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WER6KVRIDZKPMQAJYPRUTSCR43}

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	2026-07-05T00:20:20.452176Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b123e556281e54f64009c3e349c851e6dcabf3cf1b42328b4ecb50016361ba95

Aliases

arxiv: 1909.12840 · arxiv_version: 1909.12840v2 · doi: 10.48550/arxiv.1909.12840 · pith_short_12: WER6KVRIDZKP · pith_short_16: WER6KVRIDZKPMQAJ · pith_short_8: WER6KVRI

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/WER6KVRIDZKPMQAJYPRUTSCR43 \
  | 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: b123e556281e54f64009c3e349c851e6dcabf3cf1b42328b4ecb50016361ba95

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "982626e045ab8469e37cefbd29a5fe9e6a8518de3bf0846450fc5b3acbe992c9",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-09-27T18:00:00Z",
    "title_canon_sha256": "f4870e6ca757609c48a537c052a67e5e0b880226cb9db8e7e0cfca9b71bbb188"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.12840",
    "kind": "arxiv",
    "version": 2
  }
}