Pith Number

pith:VKPN7VBD

pith:2016:VKPN7VBDGCP4ELW73XDYHCEAFY

not attested not anchored not stored refs pending

Lupus disks with faint CO isotopologues: low gas/dust or large carbon depletion?

Anna Miotello, Carlo F. Manara, Ewine F. van Dishoeck, Greta Guidi, Jonathan P. Williams, Leonardo Testi, Marco Tazzari, Megan Ansdell, Michiel Hogerheijde, Nienke van der Marel, Sierk van Terwisga

arxiv:1612.01538 v1 · 2016-12-05 · astro-ph.SR · 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{VKPN7VBDGCP4ELW73XDYHCEAFY}

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	2026-05-18T00:49:11.004445Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa9edfd423309fc22edfddc78388802e186f9fd52ead9fa3ba37c40054977a46

Aliases

arxiv: 1612.01538 · arxiv_version: 1612.01538v1 · doi: 10.48550/arxiv.1612.01538 · pith_short_12: VKPN7VBDGCP4 · pith_short_16: VKPN7VBDGCP4ELW7 · pith_short_8: VKPN7VBD

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/VKPN7VBDGCP4ELW73XDYHCEAFY \
  | 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: aa9edfd423309fc22edfddc78388802e186f9fd52ead9fa3ba37c40054977a46

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e8c1060ebbf0325bc8ed4e32a572f2f69c807405f032ddbefb5daa027af9268",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-12-05T21:00:07Z",
    "title_canon_sha256": "98886e7da4053b100eb5d6ad056744808e51aa6dc8abc628a6c32ec8b8dc021f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.01538",
    "kind": "arxiv",
    "version": 1
  }
}