Pith Number

pith:VKI6HIN2

pith:2011:VKI6HIN2L6JAYOIXBKFSLZKYFN

not attested not anchored not stored refs pending

Megamaser detection and nuclear obscuration in Seyfert galaxies

Martin Haas, Michael Ramolla, Rolf Chini, Vardha Nicola Bennert

arxiv:1102.2419 v1 · 2011-02-11 · astro-ph.CO · 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{VKI6HIN2L6JAYOIXBKFSLZKYFN}

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	2026-05-18T02:03:11.955171Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa91e3a1ba5f920c39170a8b25e5582b5b61bc39e694ffa1b893b02bbc9a2477

Aliases

arxiv: 1102.2419 · arxiv_version: 1102.2419v1 · doi: 10.48550/arxiv.1102.2419 · pith_short_12: VKI6HIN2L6JA · pith_short_16: VKI6HIN2L6JAYOIX · pith_short_8: VKI6HIN2

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/VKI6HIN2L6JAYOIXBKFSLZKYFN \
  | 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: aa91e3a1ba5f920c39170a8b25e5582b5b61bc39e694ffa1b893b02bbc9a2477

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc364e362888f25254bfb7c81ca962dd9b9bd2d3088100f9a8cde7b8a716be93",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-02-11T19:48:31Z",
    "title_canon_sha256": "e9ac6488cadfef30d7582882e0c446a44ffdbb1bf60bd11f107a4c60db74bece"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.2419",
    "kind": "arxiv",
    "version": 1
  }
}