Pith Number

pith:IEX6GR6H

pith:2008:IEX6GR6H25AX26WXNA7DS7EAKV

not attested not anchored not stored refs pending

GMASS Ultradeep Spectroscopy of Galaxies at 1.4<z<2. II. Superdense passive galaxies: how did they form and evolve ?

A. Cimatti (Universita` di Bologna - Dipartimento di Astronomia), A. Franceschini (Universita` di Padova - Dipartimento di Astronomia), A. Renzini (INAF - OAPD), C. Halliday (INAF - OAA), E. Daddi (CEA Saclay), G. Rodighiero (Universita` di Padova - Dipartimento di Astronomia), G. Zamorani (INAF - OABO), J. Kurk (MPIA Heidelberg), L. Pozzetti (INAF - OABO), M. Bolzonella (INAF - OABO), M. Brusa (MPE Garching), M. Dickinson (NOAO), M. Mignoli (INAF - OABO), P. Cassata (LAM), P. Rosati (ESO), S. Berta (MPE Garching)

arxiv:0801.1184 v1 · 2008-01-08 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IEX6GR6H25AX26WXNA7DS7EAKV}

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	2026-05-18T04:23:10.851052Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

412fe347c7d7417d7ad7683e397c80554e02a94f230b654a0d175ebb9c6bad8e

Aliases

arxiv: 0801.1184 · arxiv_version: 0801.1184v1 · doi: 10.48550/arxiv.0801.1184 · pith_short_12: IEX6GR6H25AX · pith_short_16: IEX6GR6H25AX26WX · pith_short_8: IEX6GR6H

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/IEX6GR6H25AX26WXNA7DS7EAKV \
  | 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: 412fe347c7d7417d7ad7683e397c80554e02a94f230b654a0d175ebb9c6bad8e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5448ee8a7b390a7abccc5289fd6c740247a3d9b4af2bd8aca43d6dc971d97b9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-01-08T08:37:07Z",
    "title_canon_sha256": "526df3b81b47db17e1e7831552fdd15afb465b47e5fee3106a687da88e5e3333"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0801.1184",
    "kind": "arxiv",
    "version": 1
  }
}