Pith Number

pith:6SVXTAMZ

pith:2009:6SVXTAMZ7ZUUEB5ZFB6EVJJTZM

not attested not anchored not stored refs pending

The distance to a star forming region in the Outer arm of the Galaxy

2), (3) Harvard-Smithsonian Center for Astrophysics, (4) National Astronomical Observatory of Japan, (5) Institute of Space, A. Brunthaler (2), Astronautical Science, Japan Aerospace Exploration Agency), K. Hachisuka (1, K. M. Menten (2) M. J. Reid (3), N. Mochizuki (5)((1) Shanghai Astronomical Observatory (2) Max-Planck-Institut fuer Radioastronomie, Y. Hagiwara (4)

arxiv:0901.2481 v1 · 2009-01-16 · 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{6SVXTAMZ7ZUUEB5ZFB6EVJJTZM}

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	2026-05-18T04:29:17.344609Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4ab798199fe694207b9287c4aa533cb26a6ae46228d82d3ffbaaf22e2936fff

Aliases

arxiv: 0901.2481 · arxiv_version: 0901.2481v1 · doi: 10.48550/arxiv.0901.2481 · pith_short_12: 6SVXTAMZ7ZUU · pith_short_16: 6SVXTAMZ7ZUUEB5Z · pith_short_8: 6SVXTAMZ

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/6SVXTAMZ7ZUUEB5ZFB6EVJJTZM \
  | 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: f4ab798199fe694207b9287c4aa533cb26a6ae46228d82d3ffbaaf22e2936fff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ac9ae0aa11367627abae1d3af92885ded34ecb5df0ffd1d41d79ed39c420a6e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-01-16T13:45:14Z",
    "title_canon_sha256": "9602bbcb5d0d592b56f93c84471aaaa7ca69ecb793f6bb18ba4899176643a436"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.2481",
    "kind": "arxiv",
    "version": 1
  }
}