Pith Number

pith:4SXCBBRQ

pith:2015:4SXCBBRQU36YEOTQBD3UMFVWPH

not attested not anchored not stored refs pending

Active galactic nuclei flicker: an observational estimate of the duration of black hole growth phases of ~1e5 years

Kevin Schawinski, Lia Sartori, Michael Koss, Simon Berney

arxiv:1505.06733 v1 · 2015-05-25 · astro-ph.GA · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4SXCBBRQU36YEOTQBD3UMFVWPH}

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.

Cited by

4 papers in Pith

AGN Feeding & Feedback Over the Galactic Scales

Accretion of Primordial Black Holes in Stellar Interiors

Unification models of Active Galactic Nuclei

Nuclear Activity and Host Galaxy Properties of Low-Luminosity AGN Identified from VLA Observations

Receipt and verification

First computed	2026-05-18T02:03:32.003789Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4ae208630a6fd823a7008f74616b679c2c01ab2e4141e0af5feb891e8832084

Aliases

arxiv: 1505.06733 · arxiv_version: 1505.06733v1 · doi: 10.48550/arxiv.1505.06733 · pith_short_12: 4SXCBBRQU36Y · pith_short_16: 4SXCBBRQU36YEOTQ · pith_short_8: 4SXCBBRQ

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/4SXCBBRQU36YEOTQBD3UMFVWPH \
  | 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: e4ae208630a6fd823a7008f74616b679c2c01ab2e4141e0af5feb891e8832084

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "819002c06606f53e2fbd536ca1edc4e52858584317a84ff01d6e12cdb1760409",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-05-25T20:00:25Z",
    "title_canon_sha256": "9f48740946491f3596de2f47c85bf5db5752b8eb5dd050ead255d0b9325b4176"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.06733",
    "kind": "arxiv",
    "version": 1
  }
}