Pith Number

pith:N4N3FRHM

pith:2011:N4N3FRHMYLP74K25UGOST7GJ3I

not attested not anchored not stored refs pending

The Bar and Spiral Structure Legacy (BeSSeL) Survey: Mapping the Milky Way with VLBI Astrometry

Alberto Sanna, Andreas Brunthaler, Anna Bartkiewicz, Bo Zhang, George Moellenbrock, Karl M. Menten, Katharina Immer, Kazi L.J. Rygl, Kazuya Hachisuka, Luca Moscadelli, Mark J. Reid, Mayumi Sato, Tom Dame, Xing-Wu Zheng, Ye Xu, Yoon K. Choi, Yuanwei Wu

arxiv:1102.5350 v1 · 2011-02-25 · 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{N4N3FRHMYLP74K25UGOST7GJ3I}

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	2026-05-18T02:03:04.520897Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6f1bb2c4ecc2dffe2b5da19d29fcc9da3646cde8df81db09c0b5d574c07b196e

Aliases

arxiv: 1102.5350 · arxiv_version: 1102.5350v1 · doi: 10.48550/arxiv.1102.5350 · pith_short_12: N4N3FRHMYLP7 · pith_short_16: N4N3FRHMYLP74K25 · pith_short_8: N4N3FRHM

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/N4N3FRHMYLP74K25UGOST7GJ3I \
  | 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: 6f1bb2c4ecc2dffe2b5da19d29fcc9da3646cde8df81db09c0b5d574c07b196e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d15a313304e1f7f1ae18c096b7ec3ea752160d0d1108a3279f84aed782e7d875",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-02-25T21:15:44Z",
    "title_canon_sha256": "0720f5961848ec1cae6479a5f4d5ff817ce8169df97b461a0d96604e5452c326"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.5350",
    "kind": "arxiv",
    "version": 1
  }
}