Pith Number

pith:6IU7P4VQ

pith:2015:6IU7P4VQKXP4Y2UVSRDGZQFKAC

not attested not anchored not stored refs pending

A low-mass protostar's disk-envelope interface: disk-shadowing evidence from ALMA DCO+ observations of VLA1623

2), (2) Institute of Astronomy, (3), 3), 4), (4) SRON Netherlands Institute for Space Research, 5), (5) Academia Sinica Institute of Astronomy, (6) Institute of Astronautics, Astrophysics, Catherine Walsh (3), Christian M. Fuchs (6) ((1) Max Planck Institute for extraterrestrial physics, Daniel Harsono (3, Department of Physics, Ewine F. van Dishoeck (1, Garching, Germany, Germany), Groningen, Hsinchu, Leiden, Leiden Observatory, Leiden University, Munich, Nadia M. Murillo (1, National Tsing Hua University, Shih-Ping Lai (2, Simon Bruderer (1), Taipei, Taiwan, Technical University Munich, The Netherlands

arxiv:1505.07761 v1 · 2015-05-28 · 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{6IU7P4VQKXP4Y2UVSRDGZQFKAC}

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	2026-05-18T01:36:53.237779Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f229f7f2b055dfcc6a9594466cc0aa0095f9e1698b4b585f3be611939b34271d

Aliases

arxiv: 1505.07761 · arxiv_version: 1505.07761v1 · doi: 10.48550/arxiv.1505.07761 · pith_short_12: 6IU7P4VQKXP4 · pith_short_16: 6IU7P4VQKXP4Y2UV · pith_short_8: 6IU7P4VQ

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/6IU7P4VQKXP4Y2UVSRDGZQFKAC \
  | 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: f229f7f2b055dfcc6a9594466cc0aa0095f9e1698b4b585f3be611939b34271d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "46b099202c1710db383a1f503300b0688a01a7c450031a2793262c3046ffdb59",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-05-28T17:18:42Z",
    "title_canon_sha256": "c31092d71bb8451b2ba288cc96a36d1806a43580ea0409b07d33512065abdf61"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.07761",
    "kind": "arxiv",
    "version": 1
  }
}