Pith Number

pith:LOCAS3HA

pith:2009:LOCAS3HAL5W5YRWTBGIF6NG4TY

not attested not anchored not stored refs pending

Clustering of red galaxies around the z=1.53 quasar 3C270.1

Belinda J. Wilkes, Daniel Stern, Frank Heymann, G. G. Fazio, Martin Haas, M. L. N. Ashby, Ralf Siebenmorgen, Rolf Chini, S. P. Willner

arxiv:0901.0452 v1 · 2009-01-05 · 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{LOCAS3HAL5W5YRWTBGIF6NG4TY}

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	2026-05-18T04:29:24.203905Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5b84096ce05f6ddc46d309905f34dc9e28013a80fadd4989311e699ab7950543

Aliases

arxiv: 0901.0452 · arxiv_version: 0901.0452v1 · doi: 10.48550/arxiv.0901.0452 · pith_short_12: LOCAS3HAL5W5 · pith_short_16: LOCAS3HAL5W5YRWT · pith_short_8: LOCAS3HA

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/LOCAS3HAL5W5YRWTBGIF6NG4TY \
  | 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: 5b84096ce05f6ddc46d309905f34dc9e28013a80fadd4989311e699ab7950543

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "248e77ae2ef8977d12a002140b7c046f4549735211b6a337dfb6af76e2f43d4b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-01-05T09:56:50Z",
    "title_canon_sha256": "93032052d57efb1a8aa92918d740d77eea29d78d75dca4d9de68c300b0d7b528"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.0452",
    "kind": "arxiv",
    "version": 1
  }
}