Pith Number

pith:NPCRHZFW

pith:2009:NPCRHZFWCECEL4O7FXTUJCU5A7

not attested not anchored not stored refs pending

Spectroscopic Observations of Lyman-Break Galaxies at Redshift ~ 4, 5 and 6 in the GOODS-South Field

A. Renzini, C. Cesarsky, D. Stern, E. Vanzella, H. C. Ferguson, H. Kuntschner, M. Dickinson, M. Giavalisco, M. Nonino, P. Popesso, P. Rosati, R.A.E. Fosbury, S. Cristiani, the GOODS team

arxiv:0901.4364 v1 · 2009-01-27 · 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{NPCRHZFWCECEL4O7FXTUJCU5A7}

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	2026-05-18T04:29:17.059305Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6bc513e4b6110445f1df2de7448a9d07f7dd0aa6c633fbd724787c145ff758fd

Aliases

arxiv: 0901.4364 · arxiv_version: 0901.4364v1 · doi: 10.48550/arxiv.0901.4364 · pith_short_12: NPCRHZFWCECE · pith_short_16: NPCRHZFWCECEL4O7 · pith_short_8: NPCRHZFW

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/NPCRHZFWCECEL4O7FXTUJCU5A7 \
  | 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: 6bc513e4b6110445f1df2de7448a9d07f7dd0aa6c633fbd724787c145ff758fd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55927ea840b31c2832419c787fffbb31e04cf502150b01e030e901676f11cdc5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-01-27T22:09:46Z",
    "title_canon_sha256": "a72c9e4051cff74106bb8b895b12192976b11ac70ee530a3ca1b59edd23cf80e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.4364",
    "kind": "arxiv",
    "version": 1
  }
}