Pith Number

pith:HGMPTSOC

pith:2019:HGMPTSOCRPHS6BLJW77J4EEJ3L

not attested not anchored not stored refs pending

Changing-look Seyfert galaxies with optical linear polarization measurements

B. Ag\'is Gonz\'alez, D. Hutsem\'ekers, F. Marin

arxiv:1909.02801 v1 · 2019-09-06 · astro-ph.GA

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HGMPTSOCRPHS6BLJW77J4EEJ3L}

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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.

Cited by

1 paper in Pith

OQ~208: A New Fe~II Changing-look Active Galactic Nucleus and Implications for the Nature of the Changing-look Phenomenon

Receipt and verification

First computed	2026-07-05T00:02:43.274179Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3998f9c9c28bcf2f0569b7fe9e1089daf33e2d5476a4ebb3e48eed4a2f041469

Aliases

arxiv: 1909.02801 · arxiv_version: 1909.02801v1 · doi: 10.48550/arxiv.1909.02801 · pith_short_12: HGMPTSOCRPHS · pith_short_16: HGMPTSOCRPHS6BLJ · pith_short_8: HGMPTSOC

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/HGMPTSOCRPHS6BLJW77J4EEJ3L \
  | 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: 3998f9c9c28bcf2f0569b7fe9e1089daf33e2d5476a4ebb3e48eed4a2f041469

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa0c3a4c87924c7c9997821128f2d7d31e6eaa0dc51e6687e0c8e44abc4f8d3a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-09-06T10:08:46Z",
    "title_canon_sha256": "d118cc02a7dcb2756ca65f85ab50322ec4cc362369c319f153fe150f9fe53576"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.02801",
    "kind": "arxiv",
    "version": 1
  }
}