Pith Number

pith:3NSDRQN2

pith:2018:3NSDRQN27XUAFDXSK4I6BSQKXD

not attested not anchored not stored refs pending

Herschel Observations of Protoplanetary Disks in Lynds 1641

(2) Ritter Astrophysical Research Center, (3) Department of Astronomy, (4) Space Telescope Science Institute, (5) Department of Earth Science Education, (6) Departmento de Astronom\'ia, (7) Max-Planck-Institute for Astronomy), \'Alvaro Ribas (1), Amelia M. Stutz (6), Astronomy, Boston University, Catherine C. Espaillat (1), Christopher J. Miller (3), Connor E. Robinson (1) ((1) Department of Astronomy, Department of Physics, Kongju National University, Kyoung Hee Kim (5), Nuria Calvet (3), Sierra L. Grant (1), S. Thomas Megeath (2), Universidad de Concepci\'on, University of Michigan, University of Toledo, William J. Fischer (4)

arxiv:1806.06825 v1 · 2018-06-18 · 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{3NSDRQN27XUAFDXSK4I6BSQKXD}

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	2026-05-18T00:08:06.402073Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

db6438c1bafde8028ef25711e0ca0ab8f356f94222479712d82852754e605af9

Aliases

arxiv: 1806.06825 · arxiv_version: 1806.06825v1 · doi: 10.48550/arxiv.1806.06825 · pith_short_12: 3NSDRQN27XUA · pith_short_16: 3NSDRQN27XUAFDXS · pith_short_8: 3NSDRQN2

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/3NSDRQN27XUAFDXSK4I6BSQKXD \
  | 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: db6438c1bafde8028ef25711e0ca0ab8f356f94222479712d82852754e605af9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "336b32281e0911223bfaeac0e4305eb9190e38692afb26d7309322204a8e3e14",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-06-18T17:03:54Z",
    "title_canon_sha256": "a718e19bac393e4ec8d0873585671a3c59b94f68344621dc3dc8244c50c36e66"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.06825",
    "kind": "arxiv",
    "version": 1
  }
}