Pith Number

pith:N6QUXVS3

pith:2025:N6QUXVS3OS224NZFPNXKUHBQ7K

not attested not anchored not stored refs pending

Detection of Deuterated Hydrocarbon Nanoparticles in the Whirlpool Galaxy, M51

Adam K. Leroy, Alberto D. Bolatto, Alex Pedrini, Angela Adamo, Benjamin F. Williams, B. G. Elmegreen, Brandt A. L. Gaches, B. T. Draine, Cory M. Whitcomb, Daniela Calzetti, Daniel A. Dale, Danielle A. Berg, Evan B. Skillman, Eva Schinnerer, Fabian Walter, Grant P. Donnelly, J.-D. T. Smith, Julia C. Roman-Duval, Karin Sandstrom, Karl D. Gordon, L. Armus, L. K. Hunt, Martha L. Boyer, Noah S. J. Rogers, Ralf S. Klessen, R. C. Kennicutt, Ryan Chown, Sara E. Duval, Sean T. Linden, Thomas S.-Y. Lai, Tony D. Weinbeck, Torsten B\"oker

arxiv:2504.02538 v2 · 2025-04-03 · 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{N6QUXVS3OS224NZFPNXKUHBQ7K}

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	2026-07-05T11:02:43.014929Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6fa14bd65b74b5ae37257b6eaa1c30faa540cdc5f2b6b53f46d329cb280118fe

Aliases

arxiv: 2504.02538 · arxiv_version: 2504.02538v2 · doi: 10.48550/arxiv.2504.02538 · pith_short_12: N6QUXVS3OS22 · pith_short_16: N6QUXVS3OS224NZF · pith_short_8: N6QUXVS3

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/N6QUXVS3OS224NZFPNXKUHBQ7K \
  | 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: 6fa14bd65b74b5ae37257b6eaa1c30faa540cdc5f2b6b53f46d329cb280118fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4453b5a9632c4e689dbf01970569d456d1a4a8937c385733e1c160ab71168218",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-04-03T12:39:47Z",
    "title_canon_sha256": "19feadcbe56bad45670baa0f5b489e9514e76eaa81104d1fa1ac26e261fc5489"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.02538",
    "kind": "arxiv",
    "version": 2
  }
}