Pith Number

pith:DRPMSM5K

pith:2009:DRPMSM5KB2HIK5BXWJS4XFS2SV

not attested not anchored not stored refs pending

The Dependence of Star Formation Activity on Stellar Mass Surface Density and Sersic Index in zCOSMOS Galaxies at 0.5<z<0.9 Compared with SDSS Galaxies at 0.04<z<0.08

A. Bongiorno, A. Cappi, A. Cimatti, A. Iovino, A. Leauthaud, A. M. Koekemoer, A. Renzini, B. Garilli, B. Meneux, C. Halliday, C. Knobel, C. Maier, C. Marinoni, C. M. Carollo, C. Porciani, C. Scarlata, D. Bottini, D. Maccagni, D. Vergani, E. Perez Montero, E. Ricciardelli, E. Zucca, F. Lamareille, G. Coppa, G. Zamorani, H. J. McCracken, J. D. Silverman, J.-F. Le Borgne, J.-P. Kneib, K. Caputi, K. Kovac, L. de Ravel, L. Guzzo, L. Pozzetti, L. Tasca, L. Tresse, M. Bolzonella, M. Fumana, M. Mignoli, M. Scodeggio, M. Tanaka, M. T. Sargent, O. Cucciati, O. Le Fevre, P. Cassata, P. Franzetti, P. Kampczyk, P. Memeo, P. Oesch, R. Pello, R. Scaramella, S. Bardelli, S. de la Torre, S. J. Lilly, T. Contini, U. Abbas, V. Le Brun, V. Mainieri, Y. Peng

arxiv:0901.0550 v2 · 2009-01-05 · 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{DRPMSM5KB2HIK5BXWJS4XFS2SV}

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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	2026-05-18T04:29:24.187503Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c5ec933aa0e8e857437b265cb965a9553cd0f99605598d0632e9b1a29280301

Aliases

arxiv: 0901.0550 · arxiv_version: 0901.0550v2 · doi: 10.48550/arxiv.0901.0550 · pith_short_12: DRPMSM5KB2HI · pith_short_16: DRPMSM5KB2HIK5BX · pith_short_8: DRPMSM5K

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/DRPMSM5KB2HIK5BXWJS4XFS2SV \
  | 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: 1c5ec933aa0e8e857437b265cb965a9553cd0f99605598d0632e9b1a29280301

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48b94ff45f809e8c06b96821982c236e8f7df321da47952a4b94f546211c5b3b",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-01-05T21:23:40Z",
    "title_canon_sha256": "e04bf63f24ad3a819abcd69d47ed2ef49ccc95c1245ad1cf1d0f58d536c81e4e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.0550",
    "kind": "arxiv",
    "version": 2
  }
}