Pith Number

pith:6FGP6GPZ

pith:2009:6FGP6GPZGB7MPL7MANTDBA63II

not attested not anchored not stored refs pending

On the Size and Comoving Mass Density Evolution of Early-Type Galaxies

Anna Gallazzi, Arjen van der Wel, Eric F. Bell, Frank C. van den Bosch, Hans-Walter Rix

arxiv:0903.4857 v3 · 2009-03-27 · astro-ph.CO

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

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.

Cited by

1 paper in Pith

Empirical estimates of how massive galaxies can be in {\Lambda}CDM

Receipt and verification

First computed	2026-05-18T04:29:15.553055Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f14cff19f9307ec7afec03663083db423da53abc9c9cdb8fdf4d16a00598d74e

Aliases

arxiv: 0903.4857 · arxiv_version: 0903.4857v3 · doi: 10.48550/arxiv.0903.4857 · pith_short_12: 6FGP6GPZGB7M · pith_short_16: 6FGP6GPZGB7MPL7M · pith_short_8: 6FGP6GPZ

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/6FGP6GPZGB7MPL7MANTDBA63II \
  | 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: f14cff19f9307ec7afec03663083db423da53abc9c9cdb8fdf4d16a00598d74e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "416400294f3d6b8334d38bf1e514f44ac2b1a9af7e98756aece45f624753473a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-03-27T17:18:44Z",
    "title_canon_sha256": "2d9624d41032cb516277d7e3d38871278586e621e216db2c4ef2a7140c5c0026"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.4857",
    "kind": "arxiv",
    "version": 3
  }
}