Pith Number

pith:4O4HRGPP

pith:2020:4O4HRGPPXHAPDSVTDTJOFSIO5F

not attested not anchored not stored refs pending

Cosmic rays from the nearby starburst galaxy NGC 253: the effect of a low luminosity active galactic nucleus

Eduardo M. Guti\'errez, Florencia L. Vieyro, Gustavo E. Romero

arxiv:2003.09410 v1 · 2020-03-20 · 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{4O4HRGPPXHAPDSVTDTJOFSIO5F}

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	2026-07-05T00:51:43.904704Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e3b87899efb9c0f1cab31cd2e2c90ee942593a4addb5abe7b2635e14d0576d1d

Aliases

arxiv: 2003.09410 · arxiv_version: 2003.09410v1 · doi: 10.48550/arxiv.2003.09410 · pith_short_12: 4O4HRGPPXHAP · pith_short_16: 4O4HRGPPXHAPDSVT · pith_short_8: 4O4HRGPP

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/4O4HRGPPXHAPDSVTDTJOFSIO5F \
  | 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: e3b87899efb9c0f1cab31cd2e2c90ee942593a4addb5abe7b2635e14d0576d1d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "916a23db6ce1bc9a09e617e8887bba5310f408fb1cd95792955b4e4ee799a436",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2020-03-20T17:42:58Z",
    "title_canon_sha256": "146870677757d6f3319d98dc019f369d08d267af03a3461117940b7cdd8be2e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.09410",
    "kind": "arxiv",
    "version": 1
  }
}