Pith Number

pith:VAEANSK7

pith:2019:VAEANSK7HOY5VIJ2XX7SZLD37S

not attested not anchored not stored refs pending

The hidden satellites of massive galaxies and quasars at high-redshift

Joakim Rosdahl, Taysun Kimm, Tiago Costa

arxiv:1909.01360 v1 · 2019-09-03 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VAEANSK7HOY5VIJ2XX7SZLD37S}

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	2026-07-05T00:08:38.872134Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a80806c95f3bb1daa13abdff2cac7bfcac0e46badbb47b874f9b9743fe09109e

Aliases

arxiv: 1909.01360 · arxiv_version: 1909.01360v1 · doi: 10.48550/arxiv.1909.01360 · pith_short_12: VAEANSK7HOY5 · pith_short_16: VAEANSK7HOY5VIJ2 · pith_short_8: VAEANSK7

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/VAEANSK7HOY5VIJ2XX7SZLD37S \
  | 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: a80806c95f3bb1daa13abdff2cac7bfcac0e46badbb47b874f9b9743fe09109e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "12c169e20f5ae987c10d1c02c1c149f8cee920420745054df1a33475c73fdd75",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-09-03T18:00:03Z",
    "title_canon_sha256": "ef5b5cd091335da54005285836cf561ca881a261cab991ef6012e242b9eb999c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.01360",
    "kind": "arxiv",
    "version": 1
  }
}