Pith Number

pith:AKRTM4YS

pith:2024:AKRTM4YS7LGEHDFOAHIXAGMCAB

not attested not anchored not stored refs pending

First spiral arm detection using dynamical mass measurements of the Milky Way disk

Aneesh P. Naik, Axel Widmark

arxiv:2401.04571 v2 · 2024-01-09 · 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{AKRTM4YS7LGEHDFOAHIXAGMCAB}

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	2026-07-05T08:27:02.080685Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

02a3367312facc438cae01d1701982004dcea3e402a7e1768946b261f520a1e2

Aliases

arxiv: 2401.04571 · arxiv_version: 2401.04571v2 · doi: 10.48550/arxiv.2401.04571 · pith_short_12: AKRTM4YS7LGE · pith_short_16: AKRTM4YS7LGEHDFO · pith_short_8: AKRTM4YS

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/AKRTM4YS7LGEHDFOAHIXAGMCAB \
  | 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: 02a3367312facc438cae01d1701982004dcea3e402a7e1768946b261f520a1e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb7e70b35e49c7e4411768f5bd9ca329a13ed7c4b670f7a6dc15f7fdfdd80cfa",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2024-01-09T14:18:04Z",
    "title_canon_sha256": "4c2616ac08f3d0ed7d6011d2b497e40504add7429fc387fe01a0c1f74cd984ab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2401.04571",
    "kind": "arxiv",
    "version": 2
  }
}