Pith Number

pith:GUBNRSDA

pith:2022:GUBNRSDAKWX5M7A5DCSGOE6GAK

not attested not anchored not stored refs pending

Milky Way and M31 rotation curves: $\Lambda$CDM vs. MOND

De-Chang Dai, Dejan Stojkovic, Glenn Starkman

arxiv:2201.06034 v2 · 2022-01-16 · astro-ph.GA · gr-qc

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GUBNRSDAKWX5M7A5DCSGOE6GAK}

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	2026-07-05T04:28:09.395848Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3502d8c86055afd67c1d18a46713c602bdea6413efdc518d7f4e79c4e688b0ba

Aliases

arxiv: 2201.06034 · arxiv_version: 2201.06034v2 · doi: 10.48550/arxiv.2201.06034 · pith_short_12: GUBNRSDAKWX5 · pith_short_16: GUBNRSDAKWX5M7A5 · pith_short_8: GUBNRSDA

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/GUBNRSDAKWX5M7A5DCSGOE6GAK \
  | 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: 3502d8c86055afd67c1d18a46713c602bdea6413efdc518d7f4e79c4e688b0ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0872642f131048f62ea6cb3e528ac06f49c3bdc7a9048294c2736964a123aab8",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2022-01-16T12:35:50Z",
    "title_canon_sha256": "4c748cc836ec2ab8a0ce182af236a7bb00b78d88866634ca86e9f831ee0fd83c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2201.06034",
    "kind": "arxiv",
    "version": 2
  }
}