Pith Number

pith:2MPW5NU7

pith:2011:2MPW5NU7WE4I4ZIIXB5F3VZ3FO

not attested not anchored not stored refs pending

The role of environment in low-level active galactic nucleus activity: no evidence for cluster enhancement

Brendan Miller, Elena Gallo, Jong-Hak Woo, Tommaso Treu

arxiv:1112.4490 v2 · 2011-12-19 · astro-ph.HE · 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{2MPW5NU7WE4I4ZIIXB5F3VZ3FO}

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	2026-05-18T01:59:05.234588Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d31f6eb69fb1388e6508b87a5dd73b2bbccc860b465e62654fb93dc755d9bfad

Aliases

arxiv: 1112.4490 · arxiv_version: 1112.4490v2 · doi: 10.48550/arxiv.1112.4490 · pith_short_12: 2MPW5NU7WE4I · pith_short_16: 2MPW5NU7WE4I4ZII · pith_short_8: 2MPW5NU7

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/2MPW5NU7WE4I4ZIIXB5F3VZ3FO \
  | 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: d31f6eb69fb1388e6508b87a5dd73b2bbccc860b465e62654fb93dc755d9bfad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d1e4e7492268ce7fe3c621fd593c18c9b17dfa368544eea496e5eab61e029fca",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-12-19T21:01:50Z",
    "title_canon_sha256": "09bb7b3f9827f61019133416a10c39db72cba260cbb64e5827ed40b041f98a7c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.4490",
    "kind": "arxiv",
    "version": 2
  }
}