Pith Number

pith:ID4Z4ADA

pith:2009:ID4Z4ADATY3UUMFOE7Z4XNWTE4

not attested not anchored not stored refs pending

Trigonometric Parallaxes of 6.7 GHz Methanol Masers

((1) Max-Planck-Institut fuer Radioastronomie, (2) Harvard-Smithsonian Center for Astrophysics, (3) Joint Institute for VLBI in Europe, 4), (4) Sterrewacht Leiden, (5) Purple Mountain Observatory), A. Brunthaler (1), H.J. van Langevelde (3, K.L.J. Rygl (1), K.M. Menten (1), Leiden University, M.J. Reid (2), Y. Xu (5)

arxiv:0910.0150 v2 · 2009-10-01 · 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{ID4Z4ADATY3UUMFOE7Z4XNWTE4}

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	2026-05-18T02:11:35.455117Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

40f99e00609e374a30ae27f3cbb6d32714bdade1d1ce90d57bb477139ce43399

Aliases

arxiv: 0910.0150 · arxiv_version: 0910.0150v2 · doi: 10.48550/arxiv.0910.0150 · pith_short_12: ID4Z4ADATY3U · pith_short_16: ID4Z4ADATY3UUMFO · pith_short_8: ID4Z4ADA

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/ID4Z4ADATY3UUMFOE7Z4XNWTE4 \
  | 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: 40f99e00609e374a30ae27f3cbb6d32714bdade1d1ce90d57bb477139ce43399

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5913a0e8d84beadb6388fc093dcaf85340469d546ecea88661f3f41f84858c6d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-10-01T12:06:35Z",
    "title_canon_sha256": "7567e524a2d2a68e402a57095b7470a3d879a322ebefb575219bce23757b5195"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.0150",
    "kind": "arxiv",
    "version": 2
  }
}