Pith Number

pith:UMGWNPAP

pith:2015:UMGWNPAP7DL6U2WYR6KOADYU2Q

not attested not anchored not stored refs pending

The DiskMass Survey. X. Radio synthesis imaging of spiral galaxies

David R. Andersen, Kyle B. Westfall, Marc A. W. Verheijen, Matthew A. Bershady, Rob A. Swaters, Thomas P. K. Martinsson

arxiv:1510.07666 v1 · 2015-10-26 · 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{UMGWNPAP7DL6U2WYR6KOADYU2Q}

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	2026-05-18T01:23:54.820227Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a30d66bc0ff8d7ea6ad88f94e00f14d437040aa9d953381b05de68dd621958ca

Aliases

arxiv: 1510.07666 · arxiv_version: 1510.07666v1 · doi: 10.48550/arxiv.1510.07666 · pith_short_12: UMGWNPAP7DL6 · pith_short_16: UMGWNPAP7DL6U2WY · pith_short_8: UMGWNPAP

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/UMGWNPAP7DL6U2WYR6KOADYU2Q \
  | 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: a30d66bc0ff8d7ea6ad88f94e00f14d437040aa9d953381b05de68dd621958ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "31226bfe16f2a56a0268df1bc1cbf4f2ef7b4df24874b7b3f9becf1ab6e5a4f1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-10-26T20:28:50Z",
    "title_canon_sha256": "2134560ab14024ee611b2e7026f5994f8c5c21f5ce1e8bb0901dfc43d8f0965f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.07666",
    "kind": "arxiv",
    "version": 1
  }
}