Pith Number

pith:JHXKSPJ4

pith:2019:JHXKSPJ4XCGUR6LGYV4I2D7UGH

not attested not anchored not stored refs pending

The First Detection of 13C17O in a Protoplanetary Disk: a Robust Tracer of Disk Gas Mass

Alice S. Booth (University of Leeds), Catherine Walsh (University of Leeds), Chunhua Qi (Harvard), Eiji Akiyama (Hokkaido University), Hideko Nomura (Tokyo Institute of Technology / NAJO), John D. Ilee (University of Leeds), Shota Notsu (Kyoto University / Leiden Observatory)

arxiv:1908.05045 v1 · 2019-08-14 · astro-ph.EP · astro-ph.GA · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JHXKSPJ4XCGUR6LGYV4I2D7UGH}

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	2026-07-05T00:06:53.539404Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

49eea93d3cb88d48f966c5788d0ff431f74cad700de8f8437af24f936700d1e3

Aliases

arxiv: 1908.05045 · arxiv_version: 1908.05045v1 · doi: 10.48550/arxiv.1908.05045 · pith_short_12: JHXKSPJ4XCGU · pith_short_16: JHXKSPJ4XCGUR6LG · pith_short_8: JHXKSPJ4

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/JHXKSPJ4XCGUR6LGYV4I2D7UGH \
  | 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: 49eea93d3cb88d48f966c5788d0ff431f74cad700de8f8437af24f936700d1e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6abf9f409e09bfcd87164d6b71dd66cdc45b673a9c78bc11604e679e7556c26d",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2019-08-14T09:48:27Z",
    "title_canon_sha256": "217ca13f18a9549e3ad4f8a8faf2fb769dd1e0c1e14fbef41af33b4c89b11dc1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.05045",
    "kind": "arxiv",
    "version": 1
  }
}