Pith Number

pith:5R4FYNFR

pith:2011:5R4FYNFRNTMEF7JWEIGTLVLNZK

not attested not anchored not stored refs pending

An optical spectroscopic survey of the 3CR sample of radio galaxies with z<0.3. IV. Discovery of the new spectroscopic class of relic radio galaxies

3) David J. Axon (4, 3) Marco Chiaberge (6, 5) Andrew Robinson (5) Annalisa Celotti (3) Ranieri D. Baldi (1, 7) F. Duccio Macchetto (6) William B. Sparks (6) ((1) INAF - Osservatorio Astronomico di Torino, Alessandro Capetti (1) Sara Buttiglione (2, Baltimore, Bologna, Italy), Italy (2) INAF - Osservatorio Astronomico di Padova, Italy (3) SISSA-ISAS, Italy (4) University of Sussex, Trieste, UK (5) Rochester Institute of Technology, USA (6) Space Telescope Science Institute, U.S.A. (7) INAF-Istituto di Radio Astronomia

arxiv:1101.1787 v1 · 2011-01-10 · 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{5R4FYNFRNTMEF7JWEIGTLVLNZK}

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	2026-05-18T02:03:43.575343Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec785c34b16cd842fd36220d35d56dca901c8ba4f28a0fda3558223ea3bca707

Aliases

arxiv: 1101.1787 · arxiv_version: 1101.1787v1 · doi: 10.48550/arxiv.1101.1787 · pith_short_12: 5R4FYNFRNTME · pith_short_16: 5R4FYNFRNTMEF7JW · pith_short_8: 5R4FYNFR

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/5R4FYNFRNTMEF7JWEIGTLVLNZK \
  | 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: ec785c34b16cd842fd36220d35d56dca901c8ba4f28a0fda3558223ea3bca707

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e1ae2e5ab3fbd49b6420e33a1428241334974331972c885379164ab4fc85b101",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-01-10T11:55:37Z",
    "title_canon_sha256": "274370d5bfbf3a2158efb2661cc310f6fa46a58b4cbb7d64534c4f308b719b88"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.1787",
    "kind": "arxiv",
    "version": 1
  }
}