Pith Number

pith:VPIG667N

pith:2011:VPIG667NBXSZUD2H33JXQC63ZF

not attested not anchored not stored refs pending

The relationship between [OIII]5007A equivalent width and obscuration in AGN

A. Caccianiga, P. Severgnini

arxiv:1104.1348 v1 · 2011-04-07 · 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{VPIG667NBXSZUD2H33JXQC63ZF}

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	2026-05-18T02:02:36.718101Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

abd06f7bed0de59a0f47ded3780bdbc94be78e83dcebfdca5171e82d63c2c85d

Aliases

arxiv: 1104.1348 · arxiv_version: 1104.1348v1 · doi: 10.48550/arxiv.1104.1348 · pith_short_12: VPIG667NBXSZ · pith_short_16: VPIG667NBXSZUD2H · pith_short_8: VPIG667N

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/VPIG667NBXSZUD2H33JXQC63ZF \
  | 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: abd06f7bed0de59a0f47ded3780bdbc94be78e83dcebfdca5171e82d63c2c85d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b682ea66b4f9cf351e4d0f0fb285224b9f40cbed8aa24ac1bcbdbb35393ecb7b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-04-07T14:57:54Z",
    "title_canon_sha256": "6e45581be6f32530bac3ba36a2d1736814abc0e7bf5d81f718bb3ab864fa7a6a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.1348",
    "kind": "arxiv",
    "version": 1
  }
}