Pith Number

pith:VKXM47AV

pith:2012:VKXM47AVNL4SSKU7BPQOPUPWIT

not attested not anchored not stored refs pending

GMASS ultradeep spectroscopy of galaxies at z~2 - VII. Sample selection and spectroscopy

Alberto Franceschini, Alvio Renzini, Andrea Cimatti (University of Bologna, Claire Halliday, Emanuele Daddi, Germany), Gianni Zamorani, Giulia Rodighiero, Italy), Jaron Kurk (Max Planck Institute for Extraterrestrial Physics, Lucia Pozzetti, Marco Mignoli, Mark Dickinson, Micol Bolzonella, Paolo Cassata, Piero Rosati, Stefano Berta

arxiv:1209.1561 v1 · 2012-09-07 · 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{VKXM47AVNL4SSKU7BPQOPUPWIT}

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	2026-05-18T01:54:38.604524Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aaaece7c156af9292a9f0be0e7d1f644d6efb273b2825395c947f0304e691328

Aliases

arxiv: 1209.1561 · arxiv_version: 1209.1561v1 · doi: 10.48550/arxiv.1209.1561 · pith_short_12: VKXM47AVNL4S · pith_short_16: VKXM47AVNL4SSKU7 · pith_short_8: VKXM47AV

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/VKXM47AVNL4SSKU7BPQOPUPWIT \
  | 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: aaaece7c156af9292a9f0be0e7d1f644d6efb273b2825395c947f0304e691328

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c4698dfe13d186a17a8b8d540b1b974ab53b6aace4cc1695df3cef7557fc58be",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-09-07T15:01:16Z",
    "title_canon_sha256": "095254c5798246da6493465d9c40aa823465ac64d215b881c784d9b1db830960"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.1561",
    "kind": "arxiv",
    "version": 1
  }
}