Pith Number

pith:PDJP4AX7

pith:2016:PDJP4AX7P2KXDUZB6WYAAATADQ

not attested not anchored not stored refs pending

The Environment of z >1 3CR Radio Galaxies and QSOs: From Proto-Clusters to Clusters of Galaxies?

Alessandro Capetti, Bryan Hilbert, Christopher P. O'Dea, Eric S. Perlman, F. Duccio Macchetto, George K. Miley, Grant. R. Tremblay, John Paul Kotyla, Marco Chiaberge, Stefi A. Baum, William B. Sparks

arxiv:1605.03161 v1 · 2016-05-10 · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PDJP4AX7P2KXDUZB6WYAAATADQ}

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	2026-05-18T01:10:29.901464Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78d2fe02ff7e9571d321f5b00002601c39ddd2db1666d0000cd07d156203aa09

Aliases

arxiv: 1605.03161 · arxiv_version: 1605.03161v1 · doi: 10.48550/arxiv.1605.03161 · pith_short_12: PDJP4AX7P2KX · pith_short_16: PDJP4AX7P2KXDUZB · pith_short_8: PDJP4AX7

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/PDJP4AX7P2KXDUZB6WYAAATADQ \
  | 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: 78d2fe02ff7e9571d321f5b00002601c39ddd2db1666d0000cd07d156203aa09

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c199aac7eef7367b88738a6db07b35631c45a229a9f905227ed19cf2a8e8044",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-05-10T19:30:56Z",
    "title_canon_sha256": "b44331a3e8827f58e4e03846df3af521c23460fbb4463fd144ee8e76079319be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.03161",
    "kind": "arxiv",
    "version": 1
  }
}