Pith Number

pith:6TGOUJGI

pith:2019:6TGOUJGI45YF3SNAJW6PUGYKZU

not attested not anchored not stored refs pending

Spectral observations of the systems with the disturbed spiral arms: Arp 42, Arp 82 and Arp58

Anatoly V. Zasov, Anna S. Saburova, Oleg V. Egorov, Sergei N. Dodonov

arxiv:1904.03150 v1 · 2019-04-05 · 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{6TGOUJGI45YF3SNAJW6PUGYKZU}

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	2026-05-17T23:48:29.507256Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4ccea24c8e7705dc9a04dbcfa1b0acd2fbbe2dd6e6a53f68c0041ed5f3e260e

Aliases

arxiv: 1904.03150 · arxiv_version: 1904.03150v1 · doi: 10.48550/arxiv.1904.03150 · pith_short_12: 6TGOUJGI45YF · pith_short_16: 6TGOUJGI45YF3SNA · pith_short_8: 6TGOUJGI

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/6TGOUJGI45YF3SNAJW6PUGYKZU \
  | 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: f4ccea24c8e7705dc9a04dbcfa1b0acd2fbbe2dd6e6a53f68c0041ed5f3e260e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "011c0f71c8fafb4ea2dbd9802d69cb6f4b1357acef507b8f5bb042f3dfb45f71",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-04-05T16:40:24Z",
    "title_canon_sha256": "b8f8e98108d3c9785a7fc40902b409a0ade685ca99e5f30be450fa473c554711"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.03150",
    "kind": "arxiv",
    "version": 1
  }
}