Pith Number

pith:PKL4I5U4

pith:2018:PKL4I5U45HHZEY6VZP4YIUV4BZ

not attested not anchored not stored refs pending

The impact of spiral density waves on the star formation distribution: a view from core-collapse supernovae

A. A. Hakobyan, A. G. Karapetyan, D. Kunth, G. A. Mamon, L. V. Barkhudaryan, M. Turatto, V. Adibekyan

arxiv:1811.12001 v1 · 2018-11-29 · 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{PKL4I5U45HHZEY6VZP4YIUV4BZ}

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	2026-05-17T23:59:34.740691Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a97c4769ce9cf9263d5cbf98452bc0e504407375741b771fb62434bf8826f23

Aliases

arxiv: 1811.12001 · arxiv_version: 1811.12001v1 · doi: 10.48550/arxiv.1811.12001 · pith_short_12: PKL4I5U45HHZ · pith_short_16: PKL4I5U45HHZEY6V · pith_short_8: PKL4I5U4

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/PKL4I5U45HHZEY6VZP4YIUV4BZ \
  | 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: 7a97c4769ce9cf9263d5cbf98452bc0e504407375741b771fb62434bf8826f23

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3edf77215daf050f40756caedc118cc0233ac0fd102f47ac388273386f013fd1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-11-29T07:44:39Z",
    "title_canon_sha256": "b454ad1accda80e72efa064e1055777d64780bd6cd2b3431161b4f8645820742"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.12001",
    "kind": "arxiv",
    "version": 1
  }
}