Pith Number

pith:U7GOGA6P

pith:2020:U7GOGA6P7TAYZN7F2ZOH6HOXZO

not attested not anchored not stored refs pending

Scale-Invariant Dynamics of Galaxies, MOND, Dark Matter, and the Dwarf Spheroidals

Andre Maeder, Vesselin G. Gueorguiev

arxiv:2001.04978 v1 · 2020-01-14 · gr-qc · 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{U7GOGA6P7TAYZN7F2ZOH6HOXZO}

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	2026-07-05T00:33:38.050296Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7cce303cffcc18cb7e5d65c7f1dd7cb8b9411a7c85aca1f8abb711183c2b70a

Aliases

arxiv: 2001.04978 · arxiv_version: 2001.04978v1 · doi: 10.48550/arxiv.2001.04978 · pith_short_12: U7GOGA6P7TAY · pith_short_16: U7GOGA6P7TAYZN7F · pith_short_8: U7GOGA6P

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/U7GOGA6P7TAYZN7F2ZOH6HOXZO \
  | 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: a7cce303cffcc18cb7e5d65c7f1dd7cb8b9411a7c85aca1f8abb711183c2b70a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4867e6ba1943aa7b47ae291834794e692f6e1209376a38ad53b662fde0b73719",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2020-01-14T07:19:59Z",
    "title_canon_sha256": "948b72e42f19ef9e56bec84f3bfbd062e94c8fd3bf064b4998c436d1a8a6c281"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.04978",
    "kind": "arxiv",
    "version": 1
  }
}