Pith Number

pith:YOQQSV2B

pith:2015:YOQQSV2BVS7NV2P4OMGKWK3TCA

not attested not anchored not stored refs pending

The unification of powerful quasars and radio galaxies and their relation to other massive galaxies

B. Wilkes, C. Leipski, M. Haas, P. D. Barthel, P. Podigachoski

arxiv:1505.03569 v1 · 2015-05-13 · 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{YOQQSV2BVS7NV2P4OMGKWK3TCA}

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	2026-05-18T01:55:00.445617Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c3a1095741acbedae9fc730cab2b731039ebfa3b2f04d6f54cfdffb4486b6664

Aliases

arxiv: 1505.03569 · arxiv_version: 1505.03569v1 · doi: 10.48550/arxiv.1505.03569 · pith_short_12: YOQQSV2BVS7N · pith_short_16: YOQQSV2BVS7NV2P4 · pith_short_8: YOQQSV2B

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/YOQQSV2BVS7NV2P4OMGKWK3TCA \
  | 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: c3a1095741acbedae9fc730cab2b731039ebfa3b2f04d6f54cfdffb4486b6664

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "955cb1a439ba0fdc54b22925fbd7488d3ce3066ceffe9b4f63021ee64625f372",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-05-13T22:30:21Z",
    "title_canon_sha256": "7b438e204c8b612abe48068799f2ba390a323c1c56132508aa31dbc46766e00a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.03569",
    "kind": "arxiv",
    "version": 1
  }
}