Pith Number

pith:7ZGOW4OV

pith:2017:7ZGOW4OVHOV7XCRLGZFMSX4WRD

not attested not anchored not stored refs pending

ALMA shows that gas reservoirs of star-forming disks over the past 3 billion years are not predominantly molecular

B. Catinella, L. Cortese, S. Janowiecki

arxiv:1709.07933 v2 · 2017-09-22 · 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{7ZGOW4OVHOV7XCRLGZFMSX4WRD}

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	2026-05-18T00:32:38.780880Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe4ceb71d53babfb8a2b364ac95f9688cf1a5c1eab643682c702ef9c53c75160

Aliases

arxiv: 1709.07933 · arxiv_version: 1709.07933v2 · doi: 10.48550/arxiv.1709.07933 · pith_short_12: 7ZGOW4OVHOV7 · pith_short_16: 7ZGOW4OVHOV7XCRL · pith_short_8: 7ZGOW4OV

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/7ZGOW4OVHOV7XCRLGZFMSX4WRD \
  | 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: fe4ceb71d53babfb8a2b364ac95f9688cf1a5c1eab643682c702ef9c53c75160

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0dce7d10586794bf3474a536ebbc29fec274374848d498dc48e12db189e416f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-09-22T20:12:54Z",
    "title_canon_sha256": "76743a62322eaa36addc904d5b50c6173e3dae31701cefdc6291d16c815ce817"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.07933",
    "kind": "arxiv",
    "version": 2
  }
}