Pith Number

pith:OBOJQ2Q7

pith:2021:OBOJQ2Q7XJCWT2AQT7ML2ZWCVC

not attested not anchored not stored refs pending

Galaxy Zoo: 3D -- Crowd-sourced Bar, Spiral and Foreground Star Masks for MaNGA Target Galaxies

Alexander Todd, Amelia Fraser-McKelvie, Anne-Marie Weijmans, Brian Cherinka, Brooke Simmons, Chris Lintott, Coleman Krawczyk, Daniel Finnegan, David Law, Dhanesh Krishnarao, Karen L. Masters, Kevin Bundy, Matthew Bershady, Michael Merrifield, Renbin Yan, Richard R. Lane, Sandor Kruk, Shoaib Shamsi

arxiv:2108.02065 v1 · 2021-08-04 · 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{OBOJQ2Q7XJCWT2AQT7ML2ZWCVC}

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	2026-07-05T03:06:34.716433Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

705c986a1fba4569e8109fd8bd66c2a8a7b5e01c3ba3783a860753042b170bc7

Aliases

arxiv: 2108.02065 · arxiv_version: 2108.02065v1 · doi: 10.48550/arxiv.2108.02065 · pith_short_12: OBOJQ2Q7XJCW · pith_short_16: OBOJQ2Q7XJCWT2AQ · pith_short_8: OBOJQ2Q7

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/OBOJQ2Q7XJCWT2AQT7ML2ZWCVC \
  | 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: 705c986a1fba4569e8109fd8bd66c2a8a7b5e01c3ba3783a860753042b170bc7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f05b8507e6d0fb8724bcb83cf74a87a782655e08feafc24901e88d80ccd9ce8",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-08-04T13:48:37Z",
    "title_canon_sha256": "e1b3a64c38932860a5b8517b30e427393f4e433ded32c117661d3b99ca36cfaf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.02065",
    "kind": "arxiv",
    "version": 1
  }
}