Pith Number

pith:MWYHYY7J

pith:2012:MWYHYY7JQAXHP5K5TXKYOCWNJK

not attested not anchored not stored refs pending

The Cluster and Large Scale Environments of Quasars at z<0.9

Kathryn A. Harris

arxiv:1201.5746 v1 · 2012-01-27 · 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{MWYHYY7JQAXHP5K5TXKYOCWNJK}

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	2026-05-18T04:03:44.604086Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

65b07c63e9802e77f55d9dd5870acd4aa1b6eefe53eb22c5f5df5c4386fcde6c

Aliases

arxiv: 1201.5746 · arxiv_version: 1201.5746v1 · doi: 10.48550/arxiv.1201.5746 · pith_short_12: MWYHYY7JQAXH · pith_short_16: MWYHYY7JQAXHP5K5 · pith_short_8: MWYHYY7J

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/MWYHYY7JQAXHP5K5TXKYOCWNJK \
  | 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: 65b07c63e9802e77f55d9dd5870acd4aa1b6eefe53eb22c5f5df5c4386fcde6c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cd78816f2ee533774649664d96bc9a8c8e98a0faed98c8e5fd38ab93492c86c2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-01-27T11:03:31Z",
    "title_canon_sha256": "6fdcc03fb772a4e986e6e4cc2516a827ede6d2b953dd74e19ea6aed17cac47c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.5746",
    "kind": "arxiv",
    "version": 1
  }
}