Pith Number

pith:4KTX23VQ

pith:2022:4KTX23VQP5IDKC5FPPRI6MYLMV

not attested not anchored not stored refs pending

Estimating Molecular Gas Content in Galaxies from PAH Emission

2), 2) ((1) Kavli Institute for Astronomy, (2) Department of Astronomy, Astrophysics, Luis C. Ho (1, Lulu Zhang (1, Peking University, Peking University), School of Physics

arxiv:2212.05687 v1 · 2022-12-12 · 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{4KTX23VQP5IDKC5FPPRI6MYLMV}

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	2026-07-05T06:32:35.842249Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2a77d6eb07f50350ba57be28f330b655f341c201780bde355904a38a6e6e5b1

Aliases

arxiv: 2212.05687 · arxiv_version: 2212.05687v1 · doi: 10.48550/arxiv.2212.05687 · pith_short_12: 4KTX23VQP5ID · pith_short_16: 4KTX23VQP5IDKC5F · pith_short_8: 4KTX23VQ

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/4KTX23VQP5IDKC5FPPRI6MYLMV \
  | 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: e2a77d6eb07f50350ba57be28f330b655f341c201780bde355904a38a6e6e5b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1161125aa1877d698e59c3f936e7bba3c004dc5232e44733018e95e7ab894963",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2022-12-12T04:05:54Z",
    "title_canon_sha256": "7a13ab0053454600e8f4eaa21f017850c7fa4022e6e1bdafa944a5b3a50f3c81"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2212.05687",
    "kind": "arxiv",
    "version": 1
  }
}