Pith Number

pith:W2LL65JP

pith:2018:W2LL65JPWG3M4YH5667CKII7MK

not attested not anchored not stored refs pending

Imaging [CI] around HD 131835: reinterpreting young debris discs with protoplanetary disc levels of CO gas as shielded secondary discs

Luca Matra, Mark C. Wyatt, Mihkel Kama, Quentin Kral, Sebastian Marino

arxiv:1811.08439 v1 · 2018-11-20 · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W2LL65JPWG3M4YH5667CKII7MK}

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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.

Cited by

1 paper in Pith

New millimeter CO observations of the gas-rich debris disks 49 Cet and HD 32297

Receipt and verification

First computed	2026-07-05T00:06:31.956576Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b696bf752fb1b6ce60fdf7be25211f62bed6fa2133536a13646ba955617c2a06

Aliases

arxiv: 1811.08439 · arxiv_version: 1811.08439v1 · doi: 10.48550/arxiv.1811.08439 · pith_short_12: W2LL65JPWG3M · pith_short_16: W2LL65JPWG3M4YH5 · pith_short_8: W2LL65JP

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/W2LL65JPWG3M4YH5667CKII7MK \
  | 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: b696bf752fb1b6ce60fdf7be25211f62bed6fa2133536a13646ba955617c2a06

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a889879be6fad7b63c7a85411080e0a82ba123c0229b088c7201ca285058a5d6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2018-11-20T19:00:07Z",
    "title_canon_sha256": "00bb1c97d755182585f1c32069f8b02764ed80f84405801a38902ccae427922b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.08439",
    "kind": "arxiv",
    "version": 1
  }
}