Pith Number

pith:2BLADCJN

pith:2013:2BLADCJNCS5RAZCYJHJ7GNGOTH

not attested not anchored not stored refs pending

Starburst and old stellar populations in two z=3.8 radio galaxies 4C 41.17 and TN J2007-1316

Brigitte Rocca-Volmerange, Carlos De Breuck, Domenika Wylezalek, Guillaume Drouart, Joel Vernet, Matthew Lehnert, Michel Fioc, Nicholas Seymour, Nicole Nesvadba

arxiv:1301.1983 v1 · 2013-01-09 · 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{2BLADCJNCS5RAZCYJHJ7GNGOTH}

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	2026-05-18T03:36:48.587351Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d05601892d14bb10645849d3f334ce99fd8e20df9cd50015481b3dcffa4d3f31

Aliases

arxiv: 1301.1983 · arxiv_version: 1301.1983v1 · doi: 10.48550/arxiv.1301.1983 · pith_short_12: 2BLADCJNCS5R · pith_short_16: 2BLADCJNCS5RAZCY · pith_short_8: 2BLADCJN

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/2BLADCJNCS5RAZCYJHJ7GNGOTH \
  | 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: d05601892d14bb10645849d3f334ce99fd8e20df9cd50015481b3dcffa4d3f31

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c85e50f132e772e1b631ea461d70b31a223a42930e02bf010ab45c9c872ed268",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-01-09T21:00:16Z",
    "title_canon_sha256": "6dc8fc51fdee7ad58a74ddd254739a8a071ba102b8e3fef8fe7d8e8bac4614cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.1983",
    "kind": "arxiv",
    "version": 1
  }
}