Pith Number

pith:RQFFVSFD

pith:2016:RQFFVSFD6MMQ23L5JJLI3TFWF3

not attested not anchored not stored refs pending

The local spiral structure of the Milky Way

Andreas Brunthaler, Bo Zhang, Jingjing Li, Karl Menten, Luca Moscadelli, Mark Reid, Nobuyuki Sakai, Thomas Dame, Xingwu Zheng, Ye Xu

arxiv:1610.00242 v2 · 2016-10-02 · 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{RQFFVSFD6MMQ23L5JJLI3TFWF3}

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	2026-05-18T01:03:13.392175Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c0a5ac8a3f3190d6d7d4a568dccb62ef05d07379904bfa093423e2b5de67b09

Aliases

arxiv: 1610.00242 · arxiv_version: 1610.00242v2 · doi: 10.48550/arxiv.1610.00242 · pith_short_12: RQFFVSFD6MMQ · pith_short_16: RQFFVSFD6MMQ23L5 · pith_short_8: RQFFVSFD

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/RQFFVSFD6MMQ23L5JJLI3TFWF3 \
  | 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: 8c0a5ac8a3f3190d6d7d4a568dccb62ef05d07379904bfa093423e2b5de67b09

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c6a7ebeb0d98b2ac6cdbcec76671dd3e1df71976ae7917056e3b272ea136885",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-10-02T08:40:56Z",
    "title_canon_sha256": "5a20c45448ad43627eb74fa142929fb84e0c9902238f5fa0ddab814dceda60a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1610.00242",
    "kind": "arxiv",
    "version": 2
  }
}