Pith Number

pith:4U4TDICY

pith:2023:4U4TDICYZTZSNA5E7YYAMAT3AI

not attested not anchored not stored refs pending

The Quest for the Missing Dust: II -- Two Orders of Magnitude of Evolution in the Dust-to-Gas Ratio Resolved Within Local Group Galaxies

Caroline Bot, Christopher J. R. Clark, Julia C. Roman-Duval, Karl D. Gordon, Lea M. Z. Hagen, Matthew W. L. Smith

arxiv:2302.07378 v1 · 2023-02-14 · 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{4U4TDICYZTZSNA5E7YYAMAT3AI}

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	2026-07-05T05:58:07.552903Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e53931a058ccf32683a4fe3006027b020591b833b7a1324a722ccccbfff5e88b

Aliases

arxiv: 2302.07378 · arxiv_version: 2302.07378v1 · doi: 10.48550/arxiv.2302.07378 · pith_short_12: 4U4TDICYZTZS · pith_short_16: 4U4TDICYZTZSNA5E · pith_short_8: 4U4TDICY

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/4U4TDICYZTZSNA5E7YYAMAT3AI \
  | 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: e53931a058ccf32683a4fe3006027b020591b833b7a1324a722ccccbfff5e88b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79b6be73c4de620b211ff22d983a9215811288e83996e41676f19bd6461ac56e",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2023-02-14T22:33:48Z",
    "title_canon_sha256": "4195f760afe16e88076b2878fb3df51598bbdddf74111c1d68c9f43a9b3b130e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2302.07378",
    "kind": "arxiv",
    "version": 1
  }
}