Pith Number

pith:QY77KV6Q

pith:2019:QY77KV6QRMDCRPFTRRCMOEF243

not attested not anchored not stored refs pending

New Spatially Resolved Imaging of the SR 21 Transition Disk and Constraints on the Small-Grain Disk Geometry

Alfio Puglisi, Andy Skemer, Jared Males, Josh Eisner, Katie Morzinski, Laird Close, Mike Ireland, Nienke van der Marel, Patrick Sheehan, Runa Briguglio, Steph Sallum, Vanessa Bailey

arxiv:1908.07427 v2 · 2019-08-20 · astro-ph.SR · astro-ph.EP · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QY77KV6QRMDCRPFTRRCMOEF243}

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	2026-07-05T00:09:03.226671Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

863ff557d08b0628bcb38c44c710bae6e03bc6f09c8baf5f63ca04767cfdff84

Aliases

arxiv: 1908.07427 · arxiv_version: 1908.07427v2 · doi: 10.48550/arxiv.1908.07427 · pith_short_12: QY77KV6QRMDC · pith_short_16: QY77KV6QRMDCRPFT · pith_short_8: QY77KV6Q

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/QY77KV6QRMDCRPFTRRCMOEF243 \
  | 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: 863ff557d08b0628bcb38c44c710bae6e03bc6f09c8baf5f63ca04767cfdff84

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d5e54d7a5824010c28e0eac0e63ed3d7846b87ecdbdd84d6fc507f72d208d8e2",
    "cross_cats_sorted": [
      "astro-ph.EP",
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-08-20T15:22:21Z",
    "title_canon_sha256": "99a16a521ca96180ea2110078cbc025bd228af8d23ed447e93e4a68bd965aec3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.07427",
    "kind": "arxiv",
    "version": 2
  }
}