Pith Number

pith:RGRRMR34

pith:2019:RGRRMR34TCAYGOV4JJC2TJUUXE

not attested not anchored not stored refs pending

Investigating the Origins of Spiral Structure in Disk Galaxies through a Multiwavelength Study

Benjamin L Davis, Daniel Kennefick, Douglas W Shields, Erik Monson, Julia Kennefick, Mohamed Shameer Abdeen, Rafael T Eufrasio, Ryan Miller

arxiv:1907.09390 v1 · 2019-07-16 · 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{RGRRMR34TCAYGOV4JJC2TJUUXE}

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	2026-05-17T23:39:59.338606Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

89a316477c9881833abc4a45a9a694b91ef29e1e81808cff87c84a392c399b52

Aliases

arxiv: 1907.09390 · arxiv_version: 1907.09390v1 · doi: 10.48550/arxiv.1907.09390 · pith_short_12: RGRRMR34TCAY · pith_short_16: RGRRMR34TCAYGOV4 · pith_short_8: RGRRMR34

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/RGRRMR34TCAYGOV4JJC2TJUUXE \
  | 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: 89a316477c9881833abc4a45a9a694b91ef29e1e81808cff87c84a392c399b52

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6170825aae5ba2d1469babbcfb1ac1b93aeccd7d07122327314633de78a0436f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-07-16T20:42:36Z",
    "title_canon_sha256": "b72aceffee1d7c4d9a0cd0e0c7e4057f3bf4a947bedc7f160d82906399ed5015"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.09390",
    "kind": "arxiv",
    "version": 1
  }
}