Pith Number

pith:GFF25PYD

pith:2019:GFF25PYDJIPGJREJU4KQURAISP

not attested not anchored not stored refs pending

Discussing the first velocity dispersion profile of an ultra-diffuse galaxy in MOND

Benoit Famaey, Michal B\'ilek, Oliver M\"uller

arxiv:1906.01631 v1 · 2019-06-04 · 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{GFF25PYDJIPGJREJU4KQURAISP}

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	2026-05-17T23:41:41.855587Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

314baebf034a1e64c489a7150a440893df22e5338f57d478f1f628a96b1dd5c0

Aliases

arxiv: 1906.01631 · arxiv_version: 1906.01631v1 · doi: 10.48550/arxiv.1906.01631 · pith_short_12: GFF25PYDJIPG · pith_short_16: GFF25PYDJIPGJREJ · pith_short_8: GFF25PYD

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/GFF25PYDJIPGJREJU4KQURAISP \
  | 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: 314baebf034a1e64c489a7150a440893df22e5338f57d478f1f628a96b1dd5c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e48aed17994b8e49c69d87b08cfe66aab7b7a33ea9164ad7829daa95b49fa14",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-06-04T17:59:59Z",
    "title_canon_sha256": "b9ca0ebb3fc0b3d1356c181fe73abc1ed0be8f30913675491f753a75d832e500"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.01631",
    "kind": "arxiv",
    "version": 1
  }
}