Pith Number

pith:7DLBIZSJ

pith:2021:7DLBIZSJ62ITQV7WMOTEVDE7ZW

not attested not anchored not stored refs pending

SOFIA observations of far-IR fine-structure lines in galaxies to measure metallicity

Alfred Krabbe, Borja Perez-Diaz, Christian Fischer, Enrique Perez-Montero, Juan Antonio Fernandez-Ontiveros, Luigi Spinoglio, Matthew A. Malkan, Miguel Pereira-Santaella, Sebastian Colditz, Suyash Kumar, William Vacca

arxiv:2111.04434 v1 · 2021-11-08 · 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{7DLBIZSJ62ITQV7WMOTEVDE7ZW}

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	2026-07-05T03:58:57.125292Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8d6146649f6913857f663a64a8c9fcdb20a084ebdcd00a5e3cfb8c9ed4b7bc7

Aliases

arxiv: 2111.04434 · arxiv_version: 2111.04434v1 · doi: 10.48550/arxiv.2111.04434 · pith_short_12: 7DLBIZSJ62IT · pith_short_16: 7DLBIZSJ62ITQV7W · pith_short_8: 7DLBIZSJ

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/7DLBIZSJ62ITQV7WMOTEVDE7ZW \
  | 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: f8d6146649f6913857f663a64a8c9fcdb20a084ebdcd00a5e3cfb8c9ed4b7bc7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "02e01df49b9dd4a5c5d56f4cbc56d13070f80554cc041e0a91671793607e234c",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-11-08T12:51:43Z",
    "title_canon_sha256": "2eb57f389c09930383f4af76c5b2fb00b58cf03df9140b8edf20a6111cae834b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.04434",
    "kind": "arxiv",
    "version": 1
  }
}