Pith Number

pith:UNUTCGSI

pith:2019:UNUTCGSIPUVMNYXZSY22A7FNKF

not attested not anchored not stored refs pending

Constraining Dark Matter models with extremely distant galaxies

Alexander Merle, Andrea Grazian, Aurel Schneider, Marco Castellano, Maximilian Totzauer, Nicola Menci, Norma G. Sanchez

arxiv:1903.12580 v1 · 2019-03-29 · astro-ph.CO · 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{UNUTCGSIPUVMNYXZSY22A7FNKF}

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	2026-05-17T23:49:53.680386Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a369311a487d2ac6e2f99635a07cad517c3a8b2e82143f5c1731d97be06a56ee

Aliases

arxiv: 1903.12580 · arxiv_version: 1903.12580v1 · doi: 10.48550/arxiv.1903.12580 · pith_short_12: UNUTCGSIPUVM · pith_short_16: UNUTCGSIPUVMNYXZ · pith_short_8: UNUTCGSI

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/UNUTCGSIPUVMNYXZSY22A7FNKF \
  | 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: a369311a487d2ac6e2f99635a07cad517c3a8b2e82143f5c1731d97be06a56ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bbecc644501001a62d9d4a04f970e10f1d4f55e2d1c1a8556256c0d5550b8ff0",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2019-03-29T15:39:38Z",
    "title_canon_sha256": "4ab520b74e75090e15ab954fe2aa2d9554a96a8a2167a505b2bc46bcefe3da4c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.12580",
    "kind": "arxiv",
    "version": 1
  }
}