Pith Number

pith:OHGVLRPK

pith:2026:OHGVLRPKWQF6KBPJFRGXUFWBWD

not attested not anchored not stored refs pending

Spiral arms across cosmic time: JWST measurements of the pitch angles of spiral galaxies at $z<3.5$

Ellie Dugdale, Gourab Nandi, Maxmillian Castillo, Sophie Rentschler, Tsinat Mitiku, Vicki Kuhn, Yicheng Guo

arxiv:2606.11315 v1 · 2026-06-09 · 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{OHGVLRPKWQF6KBPJFRGXUFWBWD}

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	2026-06-11T00:08:19.022238Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

71cd55c5eab40be505e92c4d7a16c1b0de9467e6c24841fea7d102655a774399

Aliases

arxiv: 2606.11315 · arxiv_version: 2606.11315v1 · doi: 10.48550/arxiv.2606.11315 · pith_short_12: OHGVLRPKWQF6 · pith_short_16: OHGVLRPKWQF6KBPJ · pith_short_8: OHGVLRPK

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/OHGVLRPKWQF6KBPJFRGXUFWBWD \
  | 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: 71cd55c5eab40be505e92c4d7a16c1b0de9467e6c24841fea7d102655a774399

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "34cf16eeb194335c655bcb001fb31412fff6e7bcadcfefa0ea55277634220d8b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-06-09T18:01:16Z",
    "title_canon_sha256": "db8b51e6aa2e68a8cc74397d56cf0ac920985c40d796099ffed31b44f4c68233"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.11315",
    "kind": "arxiv",
    "version": 1
  }
}